Besar <PQR pada gambar di samping adalah…A.30°B.108°C.72°D.120°​

By Posted on

<img src="https://id-static.z-dn.net/files/d1a/ee613d55d6baaa8f04f5a141c701a11c.jpg" alt="Besar

Besar <PQR pada gambar di samping adalah…A.30°B.108°C.72°D.120°​

Jawaban:

180 = 3× + 2×

180 = 5×

180 : 5 = ×

36° = ×

maka

<PQR = 3× = 3(36) = 108°

Jawaban

∠PQR = 108° [B]

Penyelesaian Soal

Sudut pelurus = 180°

Cari x

3x° + 2x° = 180°

5x° = 180°

x = 180/5 = 36°

Maka, besar ∠PQR adalah,

3x°

= 3(36°)

= 108° [B]