Question

Total surface area of a cylinder whose height is 15cm &radius 7cm is
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Answer 1

Answer:

Question :-

Total surface area of a cylinder whose height is 15cm &radius 7cm is

Given :-

height -: 15cm

radius :- 7cm

To find :-

TSA of cylinder

Answer Required :-

$\: TSA \: \: of \: \: cylinder = 2 π r ( r + h )$

$= 2 \times \frac{22}{7} \times 7(7 + 15)$

$= 2\times\frac{22}{7}\times 7\times 22$

$= 2 \times \frac{22}{ \cancel7} \times \cancel7 \times 22$

$= 2 \times 22 \times 22$

$= 968$

The TSA of cylinder is 968 cm².

Answer 2

Answer:

the answer is very simple

Step-by-step explanation:

TSAofcylinder=2πr(r+h)

= 2 \times \frac{22}{7} \times 7(7 + 15)=2×

7

22

×7(7+15)

= 2\times\frac{22}{7}\times 7\times 22=2×

7

22

×7×22

= 2 \times \frac{22}{ \cancel7} \times \cancel7 \times 22=2×

7

22

×

7

×22

= 2 \times 22 \times 22=2×22×22

= 968=968

The TSA of cylinder is 968 cm²