Question

plz solve it with solution

q19 both parts plz

Answer 1

(1)

area of rectangle = l*b

                             =7*10=70

given,

d=7

r=7/2

area of semi circle = 1/2 pi r square

                               =1/2*22/7*7/2*7/2

                               =7/4 = 1.75 cm sq

area of shaded region = area of rectangle - area of semi circle

                                      = 70 - 1.75 = 68.25 cm sq