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Mathematics 8 Online
OpenStudy (janu16):

Realley need help

OpenStudy (kidrah69):

ello : ) Post your question ^_^

OpenStudy (janu16):

Square with a radius of 8m

OpenStudy (janu16):

Imean 18 m

OpenStudy (janu16):

@kidrah69

OpenStudy (kidrah69):

and? whats the question?

OpenStudy (janu16):

Square with radius of 18m

OpenStudy (anonymous):

What are you trying to find? The area? Height? Square root?

OpenStudy (janu16):

It just says square with radius of 18m

OpenStudy (anonymous):

Can you post a screen shot of your question/ That information doesn't really help.

OpenStudy (anonymous):

The formula for the circumference of a circle is C=2∏r, in which r=radius. To find the radius, then, we insert 18 in for the circumference. So 18=2∏r. Solving for r gives 9/∏, or approximately 2.86 inches. Now that we have the radius, we can find the area. The formula for the area of a circle is A=∏r2. So inserting 9/∏ for r gives us A=∏(9/∏)2. Then A=∏(81/∏2). Simplifying gives A=81/∏, or approximately 25.78 inches.

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