Question

Tlng dijawab dong soalnya lg butuh banget nih cara dan jawabannya

Answer 1

9.
<A + < B + <C = 180°
2x + x + 17 + 28 = 180
3x + 45 = 180
3x = 135
x = 45
<A = 2x = 2×45 = 90°
<B = x + 17 = 45+17 = 62°
maka segitiga ABC = segitiga siku-siku (C)

10.
PR = RQ = 3/2 PQ
PR + RQ + PQ = 28 cm
3/2 PQ + 3/2 PQ + PQ = 28
4 PQ = 28
PQ = 7 cm