Question

pls solve the answer is 89.25 but pls give solution​

Answer 1

Since, Triangle(PQR) is an equilateral triangle

hence, PQ = PR = QR = 25 cm

Radius of PQ semicircle = 25/2 = 12.5cm

and Perimeter of semicircle PQ = 2πr / 2

= 2 × 3.14 × 12.5 / 2

= 39.25 cm

So perimeter of figure = PR + QR + perimeter of semicircle

= 25 + 25 + 39.25

= 89.25 cm

Hence, perimeter of figure = 89.25 cm

Hope it helps.