Question

if ∆ abc ∆pqr and ∠ a =60degree and ∠ b=70degree then what is the measure of ∠r?​

Answer 1

Answer:

50°

Step-by-step explanation:

hope it helps u mate..............

Answer 2

Answer:

∠r = 50°

Step-by-step explanation:

∠a + ∠b + ∠c = 180°                                         (angle sum property)

60° + 70° + ∠c = 180°

130° + ∠c = 180°

∠c = 180° - 130°

∠c = 50°

Since ΔABC is congruent to ΔPQR , ∠c = ∠r

∴ ∠r = 50°