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Sav [38]
3 years ago
10

What is the exact area of a semicircle with diameter of 28 inches?

Mathematics
2 answers:
Svetach [21]3 years ago
8 0

Answer:

98 pi inches ^2

Step-by-step explanation:

We know that the diameter is 28 inches

The radius is 1/2 diameter

r = 14 inches

Area of a circle is pi * r^2

A = pi r^2

   = pi (14)^2

  = 196 pi

A semi circle is 1/2 of a circle,so we take 1/2 the area

A semi circle = 1/2 A circle

                      = 1/2 (196 pi)

                       = 98 pi inches ^2

erastova [34]3 years ago
3 0
The answer is 307.72

(\pi \times {14}^{2} )/2
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