Question

1. The circumference of the base of a cylinder
is 12 m and its height is 77 m. Find the volume of the cylinder
​

Answer 1

Answer:

C=2πr

According to the question

2×

22

×r=12

r=

2×22

44

=

11

21

cm

Volume of cylinder=πr

2

h=

7

22

×

11

21

×

11

21

×77

2×21×21=882cm

3

Step-by-step explanation:

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Answer 2

Given :-

The circumference of the base of a cylinder is 12 m

So according to the question,

2πr = 12

2 × $\frac{22}{7}$ × r = 12

r = $\frac{12 \: × \: 7}{2 \: × \: 22}$

r = $\frac{84}{44}$

r = 1.90

Height = 77 m ( GIVEN )

Now,

Volume of cylinder

= πr²h

= $\frac{22}{7}$ × 1.90 × 1.90 × 77

= $\frac{22 \: × \: 1.90 \: × \: 1.90 \: × \: 77}{7}$

= $\frac{6115.34}{7}$

= 873.62

$\bf The \: volume \: of \: cylinder \: is \: 873.62 \: cubic \: metre \: [Ans]$

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