Question -
Answer -
It is given that,
тИаSPR = 135┬║ and тИаPQT = 110┬║
тИаSPR + тИаQPR = 180┬║ (Linear pair angles)
тЗТ 135┬║ + тИаQPR = 180┬║
тЗТ тИаQPR = 45┬║
Also, тИаPQT + тИаPQR = 180┬║ (Linear pair angles)
тЗТ 110┬║ + тИаPQR = 180┬║
тЗТ тИаPQR = 70┬║
As thesum of all interior angles of a triangle is 180┬║, therefore, for ╬ФPQR,
тИаQPR + тИаPQR + тИаPRQ =180┬║
тЗТ 45┬║ + 70┬║ + тИаPRQ = 180┬║
тЗТ тИаPRQ = 180┬║ тИТ 115┬║
тЗТ тИаPRQ = 65┬║