The correct option is A 45∘,45∘
Given,
PQR is a right isosceles triangle
∠Q=90∘
∠P=∠R
Now,
According to Angle Sum property
∠P+∠Q+∠R=180∘ [∠P=∠R]
∠P+∠Q+∠P=180∘
2∠P+90∘=180∘
2∠P=90∘
∠P=45∘
Since,
∠P=∠R
∠R=45∘
∴ The two other angles in the right isosceles triangle PQR are 45∘,45∘.