minta bantuan nya kak
4. nilai p
3 x 90 = p
180 = p
5.
RQS = 180 - PQR
RQS = 180 - 105
RQS = 75°
6.
NILAI X
4X + 3X + 75 = 180
7x = 180 - 75
7x = 105
x = 105/7
x = 15
EBC
3x
3(15)
45
7.
a. 180 - 20 = 160°
b. 180 - 63 = 117°
c. 180 - 78 = 102°
d. 180 - 135 = 45°
e. 180 - 168 = 12°
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