Math, asked by Anonymous, 3 months ago

If the curved surface of a cylinder is 96.8 sq.cm and its height is 5.5 cm then find its total area​

Answers

Answered by op6382194
3

Answer:

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Answered by Anonymous
1

Answer:

Given :-

CSA of cylinder = 96.8 cm²

Height = 5.5 cm

To Find :-

TSA

Solution :-

CSA = 2πrh

 \sf \: 96.8 = 2 \times  \dfrac{22}{7}  \times r \times  \dfrac{55}{10}

 \sf \: 96 .8 =  \dfrac{22}{7}  \times \: r \times   \dfrac{55}{5}

 \sf \: 96.8 =  \dfrac{22}{7}  \times 11 \times r

 \sf \: 96 .8\times 7 = 22 \times 11r

 \sf \: 677.6 = 242r

 \sf \dfrac{677.6}{242} = r

 \sf \: 2.8 = r

Finding TSA

TSA = 2πr(r + h)

 \sf \: 2 \times  \dfrac{22}{7}  \times 2.8(2.8 + 5.5)

 \sf \: 44 \times 0.4(2.8 + 5.5)

 \sf \: 44 \times 0.4(8.3)

 \sf \:  17.6\times 8.3

 \sf \:  146 {cm}^{2}

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