Question

In A PQR, MLP = 70 degree m angle Q 65 degree, then find m angle R


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Answer 1

SOLUTION

In Δ PQR,

∠P + ∠Q + ∠R = 180∘ (Angle sum property)

⇒ 70∘ + 65∘ + ∠R = 180∘

⇒ 135∘ + ∠R = 180∘

⇒ ∠R = 180∘ − 135∘

= 45∘

Hence, the measure of ∠ R is 45∘.