Step-by-step explanation:
x = 360°- (90°+36°+36°)
= 360 - (162°)
= 198°
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[tex] \: [/tex]
PQR = 360°
QR = 90°
PQ = 36°
RX = 36°
Soo :
x = 360° - (90° + 36° × 2)
x = 360° - (90° + 72°)
x = 360° - (162)
x = 198°✔
