Area = pi*152 = 706.858 square inches to 3 d.p.
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A circle with a radius of 15 inches has a circumference of: 94.2 inches.
The area of a circle with a radius of 15 cm is: 706.9 cm2
Radius = 15 / 2 Pi or 2.3873 inches (rounded to 4th decimal).
Circumference = Pi multiplied by the diameter. C = (3.1415)(15 in.) = 47.12 in. Therefore, the circumference of a circle with a diameter of 15 in. and a radius of 7.5 in. is approximately 47.12 inches.
Your answer will be 15 and for area its 28.26