Question

Please jawab. pake cara thanks

Answer 1

6.
K = 2x°
L = (5x + 26)°

berpelurus = 180°
K + L = 180°
2x + 5x + 26 = 180
7x = 180 - 26
7x = 154
x = 154/7 = 22°

L = (5x + 26)°
= 5(22) + 26
= 110 + 26 = 136° (d)

7.
P = 3x
L = (4x + 26)°

berpelurus = 180°
P + L = 180°
3x + 4x + 26 = 180
7x = 180 - 26
7x = 154
x = 154/7 = 22°

L = (4x + 26)°
= 4(22) + 26
= 88 + 26 = 114° (b)

8.
garis lurus = 180°
siku-siku = 90°
2x + 6 + 90 + 6x - 4 = 180
8x + 92 = 180
8x = 180 - 92
8x = 88
x = 88/8 = 11° (a)

9.
BCE = (4x + 6)°
ACB = 2x°
ACE = siku-siku = 90°

BCE + ACB = ACE
4x + 6 + 2x = 90°
6x + 6 = 90
6x = 90 - 6
6x = 84
x = 84/6 = 14°

ACB = 2x°
= 2(14) = 28° (b)

10.
ROS = (4x + 6)°
POQ = 3x°
POR = siku-siku = 90°
QOS = garis lurus = 180°

ROS + POQ + POR = QOS
4x + 6 + 3x + 90 = 180°
7x + 96 = 180
7x = 180 - 96
7x = 84
x = 84/7 = 12°

ROS = (4x + 6)°
= 4(12) + 6
= 48 + 6 = 54° (c)

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