Asked by Robbie F

Carlos is planning to build a grain bin with a radius of 15 ft. he reads that the recommended slant of the roof is 25 degrees. He wants the roof to over hang the edge of the bin by 1ft. What should the length of X be? Give answer in Feet and Inches....Explain
Answered by Steve
draw a side view. It should be clear that

7.5/(x-1) = cos25°
Answered by scott
the radius of the conical roof is 16' ... 15' bin plus 1' overhang

the slant height of the cone (X) is ... 16 / cos(25º)
Answered by Steve
Oops. I read diameter=15, not radius.

But I also read it that the slant height contains the extra foot, not the radius.
That is, there is an extra foot of roof, not an extra foot of radius.
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