Perhatikan gambar. Jika besar Tolong dibantu ya! Makasih..:-)

<QPS = (180* - 40*)÷2 = 140*÷2 = 70*
<RPS = (180* - (180*-70*)) ÷ 2
<RPS = (180* - 110*) ÷ 2 = 70*÷2 = 35*

<QPR = <QPS + <RPS
<QPR = 70* + 35*
<QPR = 105* (Jawaban D)