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"What is the ratio of the area of TRIANGLE ABC to the area of sector BDCA (the sector spanned by arc BDC)? " Download png

Kathy Robinson

in Mathematics

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Ross Pratt on January 21, 2018

Ratio = A_ABC / A_BDCA = r^2/2 / 3/4(π)r^2 = 4 / 6π = 2 / 3π = 0.21


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