Question

6. The curved surface area and the total surface area of the solid right circular cylinder are 704
sq.cm and 1936 sq.cm. Find its radius and height.
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Answer 1

Answer:

CSA=2πrh

=>704=2(22)rh/7

=>rh=112

TSA=2πr(r+h)

1936=2(22)(r²+rh)/7

=>r²+rh=308

=>r²+112=308

=>r²=196

=>r=14

so, rh=14h=308

=>h=22