Question

Tolong di bantu ya kak pake cara. thanks

Answer 1

1.
ABD = 6x°
BDE = 3x°
ABE = siku-siku = 90°

ABD + BDE = ABE
6x + 3x = 90
9x = 90
x = 90/9 = 10°

ABD = 6x°
= 6(10) = 60° (b)

2.
PQS = (6x + 4)°
SQR = (3x + 5)°
PQR = siku-siku = 90°

PQS + SQR = PQR
6x + 4 + 3x + 5 = 90
9x + 9 = 90
9x = 90 - 9
9x = 81
x = 81/9 = 9°

SQR = (3x + 5)°
= 3(9) + 5
= 27 + 5 = 32° (b)

3.
penyiku = 90°
penyiku dari sudut 64°
= 90 - 64 = 26° (a)

4.
AEB = 2x°
BEC = 3x°
CED = 4x°
AED = garis lurus = 180°

AEB + BEC + CED = AED
2x + 3x + 4x = 180
9x = 180
x = 180/9 = 20°

AEC = AEB + BEC
= 2x + 3x = 5x°
= 5(20) = 100° (c)

5.
BCA = (3x - 2)°
ACD = (2x + 2)°
BCD = garis lurus = 180°

BCA + ACD = BCD
3x - 2 + 2x + 2 = 180
5x = 180
x = 180/5 = 36°

BCA = (3x - 2)°
= 3(36) - 2
= 72 - 2 = 70° (c)

maaf kalau salah
semoga membantu

Answer 2

1. 6 x + 3 x = 90
9 x = 90
x = 90/9
x = 10
ABD = 6X = 6.10 = 60
2. (6x+4)^ + (3x+5)^ = 90^
6x+3x = 90-4-5
9x = 81
x = 81/9
x = 9
maka 3x+5
3.9 + 5
27 + 5 = 32^
3. a 26^
4. 2x + 3x + 4x = 180
9x = 180
x = 180/9
x = 20
2x+3x
2.20 + 3.20
40 + 60
100^