The lower circumference of the chimney is 12.57 m, and the top circumference is 5.655 m. The slope of the walls is 87°. Find the height of the chimney.

Correct answer:

x =  20.9999 m

Step-by-step explanation:

o=2πr r1=12.57/(2π)=2.001 m r2=5.655/(2π)=0.9 m  tan87°=xr1r2  x=(r1r2)tan87°=(2.0010.9)tan87°=20.9999 m 

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