Question

Find the diameter of a semi circle whose area is 77 cm square

Answer 1

Answer:

7.00141 ( approx.)..........

Answer 2

Answer:

Let radius of circle be r cm

Area of semi circle = 77 cm²

1/2πr²=77cm²

1/2*22/7*r²=77cm²

11/7*r²=77cm²

r²=77*7/11

r²=49

r=√49

r=7cm

Diameter of circle = 2*r

2*7=14cm

Step-by-step explanation: