How to figurge square foot of an oval flower garden?

It's a simple formula almost like finding the area of a circle (pi) x r(squared) where r = the radius of the circle



For ovals it's:

(pi) x (r1) x(r2)

Where pi= about 3.1415, r1 = the longest radius and, r2= the shortest radius

Get it??



here's a pic of the area formula for an oval:

http://www.math.com/tables/geometry/elli...
How to figurge square foot of an oval flower garden?
i know im only thirteen but to find the area by square feet what you do is find the radius which is half of the diameter square it then times it by pi which is equal to 3.14 so the formula is A(area)R(radius) Formula: A=r2x3.14=A2. so area is radius squared x 3.14 which is the area squared. I just learned this in math class.