Question

ABCD is a rectangle with AD = 1. DPF and CQF are two equal arcs drawn with A and B as centres respectively. E is the midpoint of CD. Another arc with E as centre touches the two arcs DPF and CQF at P and Q respectivley. What is the area of the shaded portion?

Answer 1

i think it is 1/2 semicircle =1/2(pie*r^2)/2=1/4*(pi*r^2)

Answer 2

so 2*1/4*(pie*r^2)==>pie *r^2/2

Answer 3

firs find the area of the rectangle first

Answer 4

the semicircle is =pie

Answer 5

area of the rectangle =1*2=2