Question

The perimeter of a circle is 154m. so, find the diameter of circle.​

Answer 1

Answer:

49meter.

Step by step explanation:

Given :

Perimeter of circle = 154 m

Diameter of circle = ?

Now,

Perimeter of circle = 2 × π ×R

154 m = 2 × 22/7 × R

R = 154 ×7/22× 2

R = 1078/44

R = 24.5 m.

Diameter = 2R

= (2 × 24.5)m

= 49m

Hope it helps you.

Answer 2

Given

$\bold { Perimeter \ of \ a \ circle} = 154 \ m$

SOMETHING YOU NEED TO KNOW

Area of a circle = πr²

Circumference of a circle = 2πr

$\implies 2\pi r=154\\\implies r = 154/2\pi \\\implies r = \dfrac{49}{2}$

Diameter = 2(radius)

$\boxed{\boxed{\bold{Therefore, \ the \ diameter \ of \ the \ circle \ is \ 49 \ m}}}}$