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Mathematics 9 Online
OpenStudy (matlee):

Algebra Help

OpenStudy (matlee):

OpenStudy (anthonyym):

To find the perimeter (circumference) of a circle, the formula is C = 2*pi*r, where r is radius.

OpenStudy (welshfella):

the 2 semicircles make one circle so we have the 2 lengths of the rectangle + perimeter of circle 2 * 91 + 3.14 * 55

OpenStudy (welshfella):

perimeter of circle = pi*d

OpenStudy (matlee):

but 55 is the diameter do we still multiply it by pi?

OpenStudy (calculusxy):

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