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標題:

Maths funny question 1

發問:

In the figure, triangle ABE ~triangle CDE and AB : CD = 1:3 . If the area of triangle ABE is 12 cm2 , find the areas of triangle AEC and triangle BED Picture : http://s192.photobucket.com/albums/z285/gogoalgreenhope/?action=view&current=no1.jpg

最佳解答:

area of triangle CDE = (12)(3^2) = 108 let A be area of triangle AEC (A + 12) / (A + 108) = 1/3 A = 36 area of triangle BED = area of triangle AEC = 36 cm^2

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