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OpenStudy (anonymous):
What is the approximate surface area of the larger cone? Answer 817.8 square yards 467.5 square yards 267.1 square yards 152.7 square yards
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OpenStudy (anonymous):
OpenStudy (anonymous):
this is the image
OpenStudy (anonymous):
im assuming there are images of 2 cones, it is to suggest that they are similar. So by using similairity, the radius of the larger cone, is (21/12) *5=8.75 Given the formula for the surface area of a cone, SA = pi* r ( r+l) = pi * 8.75 (8.75+21) =817.8 square yards
OpenStudy (anonymous):
thank you
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