a. 145.3 yd^2
b. 42.7 yd^2
c. 36.3 yd^2
d. 21.4 yd^2
thank u!
2007-10-28 15:22:45 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
area = pi*r^2
area = 3.142 * (3.4^2)
area = 36.3
C
2007-10-28 15:29:18 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I would feel bad if I told you the answer but I will tell you how to do the problem. To find the area of a circle, you do pi times the radius squared. The diameter is two times the radius so divide the diameter (6.8) by two. Then do pi (3.14) times 6.8 divided by two and square that. I hope that helped.
2007-10-28 22:31:33 · answer #2 · answered by Jewelry Queen 3 · 0⤊ 0⤋
probably D, because the formula is A=2 pi Radius, or
pi times Diameter
2007-10-28 22:26:39 · answer #3 · answered by Anonymous · 0⤊ 1⤋
gotta be 'a' don't it?
pi*r^2 is around that mark
pi= about '3'
r^2 = about ...whoops...you gave diameter...so I'm wrong
multiplied, they'd pretty much come to that.
(I left my calc. at home, sorry)
the answer is 'c'
2007-10-28 22:36:46 · answer #4 · answered by c0cky 5 · 0⤊ 0⤋
area = pi * r^2
r = d / 2
r = 3.4
r^2 = 3.4 * 3.4
r^2 = 11.56
area = 3.14 * 11.56 = 36.3, thus c
2007-10-28 22:27:47 · answer #5 · answered by Dave 3 · 0⤊ 0⤋
None of those answers is right, they are all for "square yards" and you need "circular yards"
2007-10-28 22:25:56 · answer #6 · answered by Anonymous · 0⤊ 1⤋
c
2007-10-28 22:25:53 · answer #7 · answered by fadi_elias93 2 · 0⤊ 1⤋
FORMULA IS 2(PIE)RADIUS. PIE = 3.1416
2007-10-28 22:25:35 · answer #8 · answered by Nick name 2 · 0⤊ 1⤋
C
2007-10-28 22:25:27 · answer #9 · answered by Anonymou$ 3 · 0⤊ 1⤋