Math, asked by sharmaartias12, 16 hours ago

If the diameter of a right circular cylinder is 10 cm and height is 4 cm, then its total surface area is ​

Answers

Answered by EmperorSoul
2

S O L U T I O N :

\underline{\bf{Given\::}}

Diameter of a right circular cylinder, (D) = 10 cm

Height of cylinder, (h) = 4 cm

\underline{\bf{Explanation\::}}

As we know that formula of the T.S.A. of cylinder;

\boxed{\bf{T.S.A = 2\pi r(r+h)\:\:\:(sq.unit)}}

As we know that,

\boxed{\bf{Radius = \frac{Diameter }{2} }}

→ Radius = D/2

→ Radius = 10/2

→ Radius = 5 cm

A/q

\mapsto\tt{T.S.A\:_{(cylinder)} = 2\pi r(r+h)}

\mapsto\tt{T.S.A\:_{(cylinder)} = 2 \times \dfrac{22}{7} \times 5(5+4)}

\mapsto\tt{T.S.A\:_{(cylinder)} =  \dfrac{44}{7} \times 5(9)}

\mapsto\tt{T.S.A\:_{(cylinder)} =  \dfrac{44}{7} \times 45}

\mapsto\tt{T.S.A\:_{(cylinder)} =  \cancel{\dfrac{1980}{7}}}

\mapsto\bf{T.S.A\:_{(cylinder)} = 282.85\:cm^{2}}

Thus,

The total surface area of right circular cylinder will be 282.85 cm²

Answered by robhosystemsr
0

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