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what is the formula to find the length of semicircle. That means the radius is 4 units. So the formula youll have to use to find the area of a semi-circle is pr22.
How To Find The Area Of A Semicircle 3 Steps With Pictures from www.wikihow.com
Using the substitution property of equality you can also replace diameter with radius throughout. If you know the area of the circle divide the result by p and find its square root to get the radius. Perimeter semicircle p r d where d is the semicircle diameter.
To find the perimeter of a semi circle you have to know the diameter the length of its straight edge.
P p r 2 r. Therefore the area of this semicircle is 10048 square inches. Now just plug 5 centimeter 20 in into the formula to get your answer. The perimeter of a semicircle is the sum of the half of the circumference of the circle and diameter.
