Tolong di jawab yhh nomor 7 itu

2(x + 36) + 2(x) = 180
2x + 72 + 2x = 180
4x = 180 - 72
4x = 108
x = 27

SRQ = x + 36
= 27 + 36
= 63

PQRS = 63 × 2 = 126
= 180 - 126
= 54°