Question

the circumference of a circle is 144m find its diameter and area

Answer 1

ⓢⓞⓛⓤⓣⓘⓞⓝ ⤵️

circumference of a circle=2πr

here circumference of a circle=144 m

according to the question,

2πr=144

or,2×22/7×r=144

or,44/7×r=144

or,r=144×7/44

or,r=23 m

diameter of a circle=2×radius

=2×23=46m

Area of the circle =2×π×r²

=2×22/7×23×23m²

=3325 m²(approx)

☬ circle☬

A circle is a shape consisting of all points in a plane that are a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves in a plane so that its distance from a given point is constant. Wikipedia

Area: π× (radius)²

Circumference: 2π x radius

Diameter: 2 x radius

Number of vertices: 0

Number of edges: 0

Answer 2

Answer:

Diameter of the circle is 45.82 m. and area is 1649.59 sq. m.

Step-by-step explanation:

Given:

Circumference of circle = 144 m.

Let radius of the circle be r m.

AS we know that,

Circumference of circle = $2\pi r$

                               144= 2× (22/7)× r   ($\pi$ =22/7)

                                 r = (144× 7)/ (2×22)

                                    = 1008/44=22.91 m. (approx)

Diameter of circle = 2r

                            = 2× 22.91 =45.82 m.

Area of circle =$\pi r^{2}$

                      = (22/7) × $22.91^{2}$

                     = (11547.098)/7

                     =1649.59 sq. m.