What is the area of a 1/2 circle with a diameter of 14

Question

asked Feb 12, 2021 4.7k views

1 Answer

Collin Jackson · Answer 1 · 2021-02-18T14:23:57+0000

Answer:

76.969 units squared

or

49pi/2

or

24.5 pi

Explanation:

The equation for the area of a complete circle is

$A = \pi r^2$

Since there is only half a circle, the equation is divided by 2

$(A)/(2)=(\pi r^2)/(2)$

Given diameter 14, radius would be 14/2 = 7 units

Plug into the equation for a half circle to solve for area

$(\pi (7)^2)/(2) = (49\pi )/(2) =24.5\pi = 76.969 units^2$