Question

find area of shaded region​

Answer 1

Answer:

34.1cm^2

Step-by-step explanation:

Given

radius of semi circle =4/2 =2cm

in figure 4 semi circle divide the diameter equally so diameter of small semicicle = 4/4 = 1cm

radius of small semi circle= 1/2 = 0.5cm

we

know that area of circle = πr^2

semi circle area = πr^2/2

Area of shaded region = Area of large semi circle + 4* area of small semi circle

Shaded area = π4^2/2 + 4* (π*1^2)/2

Shaded area = 8π + 2π

shaded area = 10π

shaded area = 34.1