Question 2:
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∘.
∠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∘.