Question

37. The perimeter of a sheet of paper in the shape
of a quadrant of a circle is 50 cm. its area would
be​

Answer 1

2r+2πr/4=50

2r+2x22xr/7x4=50

2r+44r/28=50

56r+44r=1400

100r = 1400

r=14cm

Area = πr 2/4= 22x14^2/4x7=154cm2