Question

Maths

find the Cumference of a circle whose diameter is 35

Answer 1

Step-by-step explanation:

Diameter of circle=35cm

radius of the circle=17.5

therefore circumference of the circle=2×22÷7×17.5

=110cm

Answer 2

Answer:

circumference of circle is 109.95unit

Step-by-step explanation:

Given that

Diameter of circle ia 35 unit

To find

circumference of circle

Solution

Let

c as circumference of circle

r as radius of circle

We know that

$c = 2 \times \pi \times r$

To calculate radius we know that radius is always half of diameter hence

$r = \frac{d}{2}$

$r = \frac{35}{2}$

by dividing we get

$r = 17.5cm$

now

$c = 2 \times \pi \times 17.5$

as

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

$c = 2 \times \frac{22}{7} \times17.5$

hence

$c = 109.95cm$

circumference of circle is 109.95cm.