Question

If the radius of a circle is 35 cm. Find its circumference.​


F.ree Po.ints
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Answer 1

Answer:

Given

Radius (r) = 35cm

T =

22/7.

circumference of a circle= 2tr

22

= 2.7.35

= 44 x 5

= 220.cm

.circumference of a circle is 220cm.

Answer 2

Answer:

$C \: = \: 2\pi\: r \\ C = 2 \times \frac{22}{7} \times 35 \\ C = \frac{2 \times 22 \times 35}{7} \\ C = 2 \times 22 \times 5 \\ = 220 \\ \\ Circumference = 220 cm \\ i.e. 2.20 m \\ (100 cm = 1 m)$

Step-by-step explanation:

As we know the formula of finding circumference from radius is

$C = 2\pi\:r$

r = radius

$\pi = \frac{22}{7} /3.14$

So, C = 2 * π * r

$2 \times \frac{22}{7} \times 35 \\ i.e. \: \frac{2}{1} \times \frac{22}{7} \times \frac{35}{1} \\ = \frac{2 \times 22 \times 35}{1 \times 7 \times 1} \\ = \frac{2 \times 22 \times 35}{7}$

Since,

$7 \div 35 \\ = 5$

Thus, now the fraction is

$\frac{2 \times 22 \times 5}{1} \\ i.e. \: 2 \times 22 \times 5 \\ = 220$

Therefore, the circumference of the circle is 220 cm