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You are not logged in. #1 20100620 01:49:58
Find diameterhow to find the diameter of the given figure. #2 20100620 03:45:06
Re: Find diameter
Yea, he is, when I grow up I want to be him. Where B1 is the area of the smaller circle. B2 is the area of the larger circle. h1 = height from the apex to smaller circle and h2 to the larger. Do you see that it contains the little r we need. Like magic. Cross multiply: Divide both sides by pi. Divide both sides by 144: r = 6 and r = 6 Can't have a radius of  6 so r = 6 and d = 2r = 12. diameter of smaller circle is 12 In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #4 20100621 03:12:30
Re: Find diameterHi lakeheadca; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 