Question

Construction a∆ par in pq =5cm ,<p=40,<R=45°​

Answer 1

Answer:

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Step-by-step explanation:

In ∆PQR, ∠P = 70°, ∠Q = 65 °

then find ∠R.

In ∆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∘.