Question

In a isosceles right triangle pqr,if angle q=90 degree,then angle prq is​

Answer 1

in an isosceles triangle the base angles are equal and the other angle is different

so, angles p and r are equal

by angle sum property

angleP+angleQ+angleR=180°

P+R+90°=180°

P+R=180-90

P+R=90° (P=R)

P=45°

R=45°