Find the unknown marked angles in each of the right-angled triangles.tolong bantu dong
1. Find the unknown marked angles in each of the right-angled triangles.tolong bantu dong
Jawab:
a. 180° - (90° + 57°)
180° - 147°
= 33°
b. ∠ABC = 180° - (90° + 28°)
= 180° - 118°
= 62°
∠ADC = 180° - {90° - (90° - 28°)}
= 180° - (90° + 62°)
= 180° - 152°
= 28°
c. ∠GEF = 180 - (90 + 26)
= 180 - 116
= 64
∠DEG = 90 - 64
= 26
2. Painted on a wall are 4 red triangles, 2 blue triangles, 6 green triangles and 8 yellow triangles. What percentage of the triangles are blue or red?
Jawaban:
red : 20%
blue : 10%
Penjelasan dengan langkah-langkah:
4+2+6+8=20
red : 4/20=2/10=20%
blue : 2/20=1/10=10%
semoga membantu.
Penjelasan dengan langkah-langkah:
4 merah
2 biru
6 hijau
8 kuning
berjumlah = 20 segitiga
segitiga biru dan merah = 4+2 = 6
20 = 100%
1 = (100/20)%
1 = 5%
presentase segitiga biru dan merah :
= (5×6)%
= 30%
#cmiww
jangan lupa follow hehe
3. Answer key of reading power by longman
Jawaban:
kunci jawaban "kekuatan membaca" oleh logman
Jawaban:
kunci jawaban kekuatan membaca oleh longmen
Penjelasan:
semoga membantu
4. Howard hughes medical institute cells of the immune system student worksheet answer key !
Jawaban:
Answer key
Penjelasan:
A key answer is an answer that is key. That is, it's the most important of several possible answers to a question.
5. A pattern has 12 blue triangles to every 16 yellow triangles. what is the ratio of yellow triangles to the blue triangles ?
total = 16 + 12 = 28
blue triangles = 12/28
= 3/7
yellow triangles = 16/28
= 4/7
ratio yellow to the blue triangles = 3/7 : 4/7
= 3/7 × 7/4
= 3/4
dont forget to make the smartest answer oke.
thanks
6. A pattern has 5 blue triangles to every 80 yellow triangles. What is the ratio of blue Inangles to all triangles?
All triangles = 5 + 80 = 85
The ratio of blue : all triangles
= 5 : 85
Divide each by 5
= 1 : 17
7. the sum of three angles of triangle of 180 deg. the sum of two of the angles is equal to the third angle and the difference of the two angles is equal to 2/3 the third angles find the angles of this triangle?
suppose that :
x = first angle
y = second angle
z = third angle
The sum of three angles of triangle of 180°
So :
x + y + z = 180
The sum of two of the angles is equal to the third angle
So :
x + y = z
The difference of the two angles is equal to 2/3 the third angles
So :
x - y = (2/3) z
subtitute x + y = z
x + y + z = 180
z + z = 180
2z = 180
z = 180/2
z = 90
x + y = z
x + y = 90
x - y = (2/3) z
x - y = (2/3) (90)
x - y = 60 >>> x = 60 + y
subtitute x = 60 + y
x + y = 90
60 + y + y = 90
60 + 2y = 90
2y = 90 - 60
2y = 30
y = 30/2
y = 15
x = 60 + y
x = 60 + 15
x = 75
We got :
x = 75
y = 15
z = 90
So, the angles are 75°, 15°, and 90°
8. Write the Answer of :1) UsainBolt is...2) The Indonesian of Physic EducationHelp me :)For my HomeWork
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1) UsainBolt Is Hero Lesson of Physic Education
2) The Indonesian of PhysicEducation is Pembelajaran Fisik (PhysicEducation)
❤What your Question?❤
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✔DETAIL OF THE ANSWERS✔
Lesson : Healt Physic
Class : 7 (Seven)
Subject matter : Physic
Key word : Physic,dll
Question Code : 21 (TwentyOne)
Categorization code : [21.7]
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1) The Usain Bolt is Lesson of PhysicLesson
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9. A plane shape has these types (1) Has 4 sides and 4 angles (2) Has 2 pairs of parallel sides (3) Has 2 cute angles and 2 obtuse angles. The plane shape below with the types above is
Jawab:
Parallelogram (jajargenjang)
Penjelasan dengan langkah-langkah:
Maaf kalau salah
10. calculate the sizes of the lettered angles.
Jawaban:
c°=180°-(60+24)°=180°-84=96°
d°=180°-(34+90)°=180°-124°=56°
11. 1. In the figure, AB || CD. (a) List down (1) two pairs of equal corresponding angles, (ii) two pairs of equal alternate angles, (iii) two pairs of interior angles which are supplementary. (b) Is BWQ = AXR? Explain your answer. c) Is the sum of DYP and CZR equal to 180? Explain your answer.
Penjelasan dengan langkah-langkah:
Kita translite ke Bahasa Indonesia dulu
Pada gambar, AB || CD.
(a) Daftar ke bawah
(1) dua pasang sudut yang bersesuaian sama besar,
(ii) dua pasang sudut yang sama besar,
(iii) dua pasang sudut dalam yang bersuplemen.
(b) Apakah BWQ = AXR? Jelaskan jawabanmu.
c) Apakah jumlah DYP dan CZR sama dengan 180? Jelaskan jawaban Anda
Garis dan SudutJawaban
A.
(i) 2 Pasang sudut yang bersesuaian sama besar adalah
< W = < X
< Y = < Z
(ii) 2 Pasang sudut yang sama besar
< W = < X
< Y = < Z
(iii) 2 Pasang sudut dalam yang tambahan
< YWX dan < ZXW
< WYZ dan < XZY
B. BWQ = AXR
Tidak sama karena < BWQ lebih landai dibandingkan dengan < AXR yang lebih lancip
C. DYP + CZR = 180⁰
Ya, karena < DYP dan < CZR saling berhadapan maka jumlah kedua sudut adalan 180⁰
Detail Jawaban
Mapel: Matematika
Kelas: 7 / VII SMP
Materi : Garis dan Sudut
Kode Kategorisasi: -
Kata Kunci: Garis dan Sudut
Demikian
Semoga membantu dan bermanfaat!
12. Draw a sketch of pair of similar triangles, lable them. show their corresponding angles by the same signs. show the length of corresponding sides by numbers in proportion.
Penjelasan dengan langkah-langkah:
artinya ; Gambar sketsa sepasang segitiga serupa, beri label. tunjukkan sudut yang sesuai dengan tanda yang sama. tunjukkan panjang sisi yang sesuai dengan angka secara proporsional.
13. Sum of two angles 95 difference 25 angles
Jawaban:2x=95-25=70. ×=70/2=35.so 3 angles are 35,60,85. Yes D is correct answer as 60+35=95 and 60 _35=25 . This discussion on The sum of the two angles in a triangle is 95° and their difference is 25°.
Penjelasan: maaf kalo salah
14. yg bisa bantuin yakk.. the sum of the three angles of triangle is 180degree. the sum of the angle is equal to the third angle and the difference of the two angles is equal to 2/3 the third angle. find the angles of this triangle
Misalkan sudut A,B,C
A=B
A+B=⅔C
A+B+C=180
1:1:3=180
maka
2A+3A=180
5A=180
A=180/5
A=36
A+B+C=180
36+36+C=180
C=180-72
C=108
Jadi sudut A=36, B=36 dan C=108
15. One fifth of the sum of two angles is 24 degree. Half of their difference is 14 degree. Find the two angles
74⁰ and 46⁰
cara dan jawabannya seperti di foto ya.
semangat belajar....
16. 10. Let A = {right-angled triangles). (a) Is each of the following triangles an element of A? Explain your answer. (i) triangle with sides 3 cm, 4 cm and 5 cm (ii) triangle with sides 2 cm, 2 cm and 3 cm (b) Can each of the following sets be the universal set for the set A? Explain your answer. (i) U = {all triangles} (ii) V = {all polygons}
Problem9
Let
[tex] \xi = \{x \colon x \text{ is an integer and } -3 \le x \le 3 \} \\ [/tex]
[tex] A = \{x \colon 2x + 1 < 5 \} \\ [/tex]
[tex] B = \left \{ x \colon \frac{x}{3} \text{ is an integer} \right \} \\ [/tex]
(a) Express the set [tex] A [/tex] by listing its elements.
(b) Is [tex] -4 [/tex] an element of [tex] A [/tex]? Explainyour answer.
(c)Write down the common elements of [tex] A [/tex] and [tex] B [/tex].
Solution
For part (a), the set of [tex] A [/tex] can be written as
[tex] A = \{-5, -3, -1, 1, 3 \} [/tex]
For part (b), [tex] -4 [/tex] is not an element of a set of [tex] A [/tex] because [tex] A [/tex] is a set of odd numbers with [tex] x \in [-3, 1], x \in \mathbb{Z} [/tex].
For part (c), both sets can be written as
[tex] A = \{-5, -3, -1, 1, 3\} [/tex]
[tex] B = \{-1, 0, 1\} [/tex]
The branches of mathematics that he/she studied:
Set theory17. Characteristics of Triangles and Quadrilaterals is?
Jawaban:
triangle is a simple closed curve or polygon which is created by three line-segments. In Euclidean geometry, any three points, specifically non-collinear, form a unique triangle and separately, a unique plane (known as two-dimensional Euclidean space).
Penjelasan dengan langkah-langkah:
harus ada bintang 5
18. A pattern has 12 blue triangles to every 16 yellow triangles. what is the ratio of yellow triangles to the blue triangles ?
Penjelasan dengan langkah-langkah:
12 di bagi 2 sama dengan 6
16 di bagi 2 sama dengan 8
jadi perbandingan nya adalah 6 banding 8
19. the sum of exterior angles from pentagon......
I assumed for your problem is a regular pentagon, then the sum of exterior angles from pentagon :
5 (180° - 108°)
= 5(72°)
= 360°
20. if the sum of interior angles is 9 times from the sum of exterior angles . find waht kind of poligon is the shape
The sum exterior angles always 360°
9 x 360° = 3240°
Sum of interior angles = (n - 2) x 180°
3240° = (n - 2) x 180°
n - 2 = 18°
n = 20°
The poligon is called icosagon.
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