Question

In ∆PQR , angle P=40° angle Q=60° then angle R=?​

Answer 1

Answer:

by angle sum property

angle P+angleQ+angleR=180°

therefore angle R = 80°

Answer 2

Answer:

80°

Step-by-step explanation:

p=40°,q=60°,r=?

sum of the angles of the triangle is 180°

p+q+r=180°

40°+60°+r=180°

100°+r=180°

r=80°.