Question

∆ABC~∆PQR,∆B=40° and ∆p=70° then what is the value of ∆R,judtify your answer

Answer 1

70,A=P=70,B=Q=40,C=R=180-70-40=70

Answer 2

Since ABC and PQR are similar
Angle b = Angle q
So Angle q= 40
In PQR
Angle p+Angle q+Angle r=180
70+40+Angle r=180
130+Angle r =180
Angle r=180-130
Angle r=50