geometry area

andyboy179 · #1 $Old$ December 2nd, 2008, 09:08 AM

see attachment for the picture. i have a picture and i need to fine the measurement of the rounded bit by using pie and radius. if you know the answer please post back. thanks. hope attachment works. $geometry-area-zz.bmp$

earboth · #2 $Old$ December 2nd, 2008, 09:45 AM

Quote:

Originally Posted by andyboy179 $View Post$

see attachment for the picture. i have a picture and i need to fine the measurement of the rounded bit by using pie and radius. if you know the answer please post back. thanks. hope attachment works.Attachment 9034

Your figur consists of 3 squares with the side length 3 and a quarter circle of radius 3. (see attachment)

Not sure what exactly you have to calculate I'll give you the area:

$a = 3 \cdot \underbrace{3^2}_{area\ of\ one\ square} + \frac14 \cdot \underbrace{\pi \cdot 3^2}_{area\ of\ the\ circle}= 9\left(3+\frac \pi4 \right)$

and the circumference:

$c = 6 \cdot 3 + \frac14\cdot 2\cdot \pi\cdot 3 = 3\left(6+\frac \pi2\right)$

andyboy179 · #3 $Old$ December 2nd, 2008, 09:48 AM

ok thanks alot for the answer