Q: What is the area of a cirlce with a radius of 15Cm?

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9pi

The surface area of a cylinder where height is 80cm and radius is 15cm equals 8953.54cm2

Because the circle is measured in square units.

pi times radius squared: a=pi x r2

Area of a circle = pi*r2 Area = pi(12 in)2 ( 144 * pi ) = 452 in2 =======

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25pi

9pi

The surface area of a cylinder where height is 80cm and radius is 15cm equals 8953.54cm2

Assuming that cirlce = circle and raduis = radius, the answer is 452 sq metres.

706.5 cm

What’s the answer

If 15cm is the diameter then the radius is 7.5cm If the circumference is 15cm then the radius is 7.5/pi cm

Because the circle is measured in square units.

pi times radius squared: a=pi x r2

Area of a circle = pi*r2 Area = pi(12 in)2 ( 144 * pi ) = 452 in2 =======

The radius is the distance from the centre point to the edge.

In which computer language?