Berapakah besar sudut PQR?​

JAWABAN:

Mencari Nilai X =

X + 2X = 90°

X + X + 2 = 90°

X = 90° ÷ 3

X = 30°

Besar Sudut PQR =

= 2X°

= 2(30)°

= 60°

Semoga Membantu