CUET Preparation Today
In a ΔABC, the sides AB and AC are extended to P and Q, respectively, the bisects of ∠PBC and ∠QCB intersect at a point R, If ∠R = 70°, then the measure of ∠A is? |
20° 40° 50° 60° |
40° |
∠R = 90° - \(\frac{∠A}{2}\) 70° = 90° - \(\frac{∠A}{2}\) ∠A = 40° |
