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The area of the semi-circle with a diameter of 18 cm will be 127.17 square cm.
It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
Let 'd' be the diameter of the circle. Then the area of the circle will be
A = (π/4)d² square units
The diameter is 18 cm. Then the area of the circle is given as,
A = (π/4) x 18²
A = (3.14 / 4) x 324
A = 254.34 square cm
Then the area of the semicircle is the area of the half of the circle, then we have
Semicircle area = 254.34 / 2
Semicircle area = 127.17 square cm
The area of the semi-circle with a diameter of 18 cm will be 127.17 square cm.
More about the area of a circle link is given below.
https://brainly.com/question/11952845
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