△ABC is constructed such that AB = 5 cm, BC = 7 cm and ∠B = 50∘. Then, the measure of ∠A is
Construct a triangle ABC, with AB=7 cm, BC= 8 cm and ∠ ABC=60o. Locate by construction the point P such that:
(i) P is equidistant from B and C.
(ii) P is equidistant from AB and BC.
Measure and record the length of PB.