2006-08-08 15:10:32 · 11 answers · asked by christina m 1 in Education & Reference ➔ Homework Help
Shape please? Is this a true Circle or a Ellipse(oval)?
2006-08-08 15:17:51 · answer #1 · answered by lana_sands 7 · 0⤊ 0⤋
to find the area of a circle you need the radius
the radius is half the diameter - 10 feet in this case
area = Pi x radius squared
= Pi x 10 x 10
= 314ft sq ( to the nearest sq foot) you may need an overlap though to fit properly!
2006-08-09 06:39:45 · answer #2 · answered by beee_very_careful 1 · 0⤊ 0⤋
Reading your question, it means you want to find the are of a circle with a diameter of 20 ft.
First, you will need the radius which is half of the diameter, (10ft)
Formula is A=Ïr², so A=Ï(10²), 10² is 100 so 100 x Ï = 314.29 ft².
2006-08-09 05:08:09 · answer #3 · answered by Anonymous · 0⤊ 0⤋
You have 3 formulas at your disposal:
(1) d = 2*r
(2) C = pi*diam and
(3) A = pi*r^2
Since you know the diam (d), use (1) to find the radius (r) and then substitute that value into (3) to find the area (A). You do not need (2) to do this problem.
2006-08-09 00:07:31 · answer #4 · answered by LARRY R 4 · 0⤊ 0⤋
If it's a circular pool then you work out the area as follows:
Pi x 10 x 10, just put it into your calculator.
2006-08-12 15:40:06 · answer #5 · answered by MIM 2 · 0⤊ 0⤋
Do you need an overhang for the cover or will it fit exactly? If you need an overhang, add that to the diameter before you do the pi r squared bit.
2006-08-09 15:15:09 · answer #6 · answered by Anonymous · 0⤊ 0⤋
use Ïr^2......so 3.14(10)^2...probably about 314 feet squared. The exact area is 100Ï
2006-08-08 22:17:08 · answer #7 · answered by Anna 4 · 0⤊ 0⤋
2006-08-08 22:16:30 · answer #8 · answered by John B 2 · 0⤊ 0⤋
My guess is 314.17 sq.ft. If i`m right can i have ten points please.
2006-08-08 22:16:19 · answer #9 · answered by sweynseye 4 · 0⤊ 0⤋
ok
2006-08-12 21:06:01 · answer #10 · answered by blackknightninja 4 · 0⤊ 0⤋