You don't have to give me the answer, but please explain how to work it out.
24. http://img113.imageshack.us/img113/8610/mathsjx2.jpg
In the diagram, 4 out of 5 of the circle is shaded and 2 out of 3 of the triangle is shaded.
What is the ratio of the area of the circle to the area of the triangle?
2006-12-02 05:25:30 · 4 answers · asked by diamondeyesx 3 in Science & Mathematics ➔ Mathematics
"4 out of 5 of the circle is shaded", so the circle is divided in 5 parts.
"2 out of 3 of the triangle is shaded", so the triangle is divided in 3 parts.
"..the ratio of the area of the circle to the area of the triangle" is:
c/t = 5/3
₢
2006-12-02 05:40:40 · answer #1 · answered by Luiz S 7 · 0⤊ 0⤋
1/5 of the circle is not shaded.
1/3 of the triangle is not shaded.
These areas, as shown in the diagram, are the same!
Hence 1/3 of the triangle = 1/5 of the area of the circle
Hence the whole area of the triangle = 3/5 of the area of the circle.
Hence the ratio of the area of the circle to the area of the triangle = 5:3
2006-12-02 08:54:22 · answer #2 · answered by Trevor P 2 · 0⤊ 0⤋
8/15 because you cross multiply 4/5 x 2/3 = 8/15
2006-12-02 05:35:52 · answer #3 · answered by Anonymous · 0⤊ 0⤋
go to the top of the class CASEY P.if i,d known how to work out the answere ,iwould kept quiet about it. and let her suffer!!...
2006-12-02 05:46:18 · answer #4 · answered by amgetting 2 · 0⤊ 0⤋