Posted by **Anonymous** on Saturday, April 21, 2007 at 4:50pm.

The perimeter of a semicircle is 72 cm. Find the raduis of the semicircle and then find its area

Consider the full circle: perimeter 144

radius= perimetercircle/2PI

areacircle= PI*rad^2

areasemicircle= 1/2 area circle

## Answer This Question

## Related Questions

- calculas - find the perimeter of the rectangle with maximum area that can be ...
- 8th grade math - circle A has a raduis that is twice the length og the raduis of...
- math - A Norman window has the shape of a rectangle surmounted by a semicircle...
- Math - A norman window is constructed by adjoining a semicircle to the top of an...
- Geometry/Trig - Hello, I would appreciate it if... 1. If you could give me ...
- easy geometry - 1)If diagonals of a rhombus are 10 cm and 24 cm. find the area ...
- maths - 1 .Find formula the perimeter and area of a semicircle ? 2.Find formula ...
- math - Two Rhombuses of the equal length and width of 10 inches each and height ...
- Calculus - A Norman window has the shape of a semicircle atop a rectangle so ...
- maths geomentry help!!! - the area of a sector PQR is a @rad.and the radius of ...

More Related Questions