Question

a right circular cylinder has base is radius 14 centimetre and height 21 CM then find total surface area of cylinder

Answer 1

TSA of cylinder=2×22/7×14×35
=88×35
=3080

Answer 2

❄️ Given:-

• Radius of the cylinder= 14 cm
• Height of the cylinder = 21 cm

We have to find:

Total surface area of the circular cylinder.

❄️ Formula we will use:-

Total surface area of the cylinder = 2πr (h + r)

Here,

r = radius = 14 cm

h = height = 21 cm

π = $\sf\dfrac{22}{7}$

❄️ Explanation:-

$\sf \: Total ~~surface ~~area ~~of ~~the~~ cylinder~= ~2\pi r(h + r)\\ \\ \implies \sf \: 2 \times \dfrac{22}{7} \times 14 \times (21 + 14) \\ \\ \implies \sf \:2 \times \frac{22}{ \cancel{7}¹}\times \cancel{14} \: ^{2} \times 35 \\ \\ \implies \sf \:2 \times 22 \times 2 \times 35 \\ \\ \implies \sf \: 3080~sq.~cm \\ \\ \therefore { \underline{\tt{ Total ~~surface ~~area ~~of}}} \\ { \underline{\tt ~~the~~ cylinder \: \: i s \: = 3080~sq.~cm \: \: \: }}$

❄️ Answer:-

Total surface area of the circular cylinder = 3080 sq. cm.