in the figure ,AOB AND CODare straight lines find the value of a and of b
1. in the figure ,AOB AND CODare straight lines find the value of a and of b
Garis COD
(a° + 60°) + (4b° + 10°) = 180°
a° + 4b° + 70° = 180°
a° + 4b° = 180° - 70°
a + 4b = 110
a = 110 - 4b
Garis AOB
(3a + 40) + (4b + 10) = 180
3a + 4b + 50 = 180
3a + 4b = 180 - 50
3a + 4b = 130
Substitusi a = 110 - 4b ke 3a + 4b = 130
3a + 4b = 130
3(110 - 4b) + 4b = 130
330 - 12b + 4b = 130
-8b = 130 - 330
-8b = -200
b = 200 : 8
b = 25
Substitusi b = 25 ke a = 110 - 4b
a = 110 - 4b
a = 110 - 4(25)
a = 110 - 100
a = 10
2. two metal wires in a bulb are connected to
Jawaban:
dua kabel logam di bohlam terhubung ke
Penjelasan:
mohon jawaban tercerdas
3. In the figure below, the two triangles are similar. What is the value of x? *
5 : 6 = 11 : x
5x = 66
x = 66 : 5
x = 13,2
4. Read the sentence .identity the adjective in the sentence and write it donw.a my mom had straight and long hairadjective
Answer:
Read the sentence. Identify the adjective in the sentence and write it down (Baca kalimatnya. Identifikasi kata sifat dalam kalimat dan tuliskan)
My mom had straight and long hair (Ibuku memiliki rambut lurus dan panjang)
Maaf jika ada yang salah
5. In the figure, find ∠x .
Jawab:
85
Penjelasan dengan langkah-langkah:
Temukan sudut apa yang jika ditambah 275 akan menjadi 360
Anggap saja sudutnya y
275+y= 360
y= 360- 275
y= 85
Ada sudut lagi yang berpelurus terhadap x, anggap aja y.
Karena y dan z pada dua garis sejajar, maka
y+z= 180
85+z= 180
z= 180-85
z= 95
x+z= 180
x+95= 180
x= 180-95
x= 85
6. 15. Look at the picture!He has ... hairA curlyB. wavyC. straightD. long
Jawaban:
A. Curly hair
Penjelasan:
Curly itu keriting, wavy bergelombang
Jawaban:
He has Curly hair...... A.
Penjelasan:
Dia memiliki rambut KERITING
7. The figure shows two identical semicircles and two identical quarter circles in a rectangle. Find the area of the shaded part. (Take π=22/7)
The area of the shaded part
rectangle area - 3/4 circle area
[tex](l \times b) - ( \frac{3}{4} \times \pi \times r \times r) \\ (14 \times 10 \frac{1}{2} ) - ( \frac{3}{4} \times \frac{22}{7} \times 7 \times 7) \\ 147 - 115,5 \\ 31,5 \: {cm}^{2} [/tex]
8. Write preposition in or at 4. Go straight on ____ the roundabout and turn right ___ the church
in,at
maaf kalo salah
semoga benar sejat selalu jaga kesehatan
salam sehat
Jawaban:
Go straight on in the round about and turn right at the Church.
9. Look at these composite figure. Area of the composite figure is …. ft2
Jawab:
area of the composite figure is 21 ft²
Penjelasan dengan langkah-langkah:
first area = 6 ft x 2 ft = 12 ft²
second area = 3 ft x 3 ft = 9 ft²
total area = 12 ft² + 9 ft² = 21 ft²
10. 26. Which one is not attached at the base of alight bulbA simple structureTwo metal contactsC Two stiff wiresD. A metal filament
Jawaban:
Jawaban nya adalah Huruf C
11. look at the figure below ∆PQR
The statement that is mostly true is C.
Jawaban C. karna segitiga sama kaki
12. Look at the following figure.
Jawab:
1620
Penjelasan dengan langkah-langkah:
Gambar tersebut dapat dilihat ada 4 bangun datar, yaitu ada 1 segitiga, 2 segiempat dan 1 segienam
Jumlah besar sudut pada segitiga adalah 180
Jumlah besar sudut pada segiempat adalah 360
Jumlah besar sudut pada segilima adalah 720
jika ditotal semuanya menjadi :
180 + 360 + 360 + 720 = 1620
Jadi total dari sudut 1 hingga sudut 17 adalah 1620
13. look at this figure. How many shaded square are in figure 10?
Jawaban:
yg Ke. 1 Arsir 1. Yg
2.Ardir3
3.ar5
14. Look at these composite figure. Perimeter of the composite figure is …. cm
Jawab:
44
Penjelasan dengan langkah-langkah:
15+15=30+7=37+7=44
15. 3. Look at the following figure! in that figure, find the values of a, b, c, d, and e!
Jawaban:
a. 180° - 50° = 130°
b. 180° - 95° = 85°
c. 180° - 80° = 100°
d. 180° - 100° = 80°
e. jumlahnya sama dengan c karena berseberangan, yaitu 100°
16. Someone from hotel wants to go to the post office. How does he get there? *turn left, go straight for two buildings, and turn right at the corner.turn left, go straight for two buildings, and turn left. It's at the end of the road.turn right, go straight, and cross the street.
Jawaban:
Turn left, go straight for two buildings, and turn left. It's at the end of the road
Penjelasan:
Fighting
Jawaban:
turn left, go straight for two buildings, and turn left. it's at the end of the road
Penjelasan:
belok ke kiri, jalan lurus melewati 2 bangunan, dan belok ke kiri. itu ada di akhir jalan
semoga membantu
17. Let's take another....at the sales figure
Answer:
time
Explanation:
Full sentences:let's take another time at the sales figure
arti:
mari kita luangkan waktu lagi di tempat ini
18. 1. Look at the man, He has.... hair. a. long b. bald c. straight curly d.
Jawaban:
"1. Look at the man, He has.... hair"
Nah di atas pertanyaannya lihat pria itu dia mempunyai rambut (...)
jadi kita memahami dlu arti dari semua pilihan
"a.long" artinya panjang
"b.bald" artinya gundul atau
"c.staright" artinya Lurus
"d.Curly"artinya keriting
Penjelasan:
jadi nanti tinggal di cocokin dengan soal yg ada di bukumu karena soalnya yg kamu kirim ke brainly tdk ada gambarnya
semoga membantu
19. 27. Look at the man! He hasa. longb. baldC. straightd. curly
Jawaban:
Mana gimana mau di jwb hehehe :")
20. in the figure AOB and COD are straight lines if AÔC =90° and DÔE = 53 ,find 1.AÔC 2.BÔD
(i) AOC = 180° - 53°=127°
(ii) BOD = AOC = 127°
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