Question

what is the area of a semi-circle of diameter 28 cm? (pi=22/7) ​

Answer 1

Answer:

d=28 cm

radius=28/2=14 cm

area of semi-circle=1/2πr^2

1/2×22/7×14^2= 308cm^2

Answer 2

Answer:

To find the area of a semicircle with diameter, divide the diameter by 2 to find the radius, and then apply the area of a semicircle formula.The area of a semicircle is half of the circle. As the area of a circle is πr2. So, the area of a semicircle is ½(πr2 ), where r is the radius.

Step-by-step explanation:

Hope it helps you!!