Question

Find the diameter of a circle and its circumference if its area is
(i) 6.16 m2

Answer 1

Given:-

• Area if the circle is= 16 m²

Solution:-

Let the radius of the circle be r.

We know that :-

Area of the circle = πr²

=> πr² = 6.16

=>22/7 × r²

=> r² = 6.16 × 22/7

=> r² = 5.6/2 × 7

=> r² = 1.96

=> r = √ 1.96

=> r = 1.4 m

Now diameter = 2( Radius)

= 2 × 1.4

= 2.8 m

Now circumference= 2πr

= 2× 22/7 × 1.4

= 2× 22 × 0.7

= 8.8 m

Answer 2

ʰⁱⁱⁱ ᵍᵒᵒᵈ ᵐᵒʳⁿⁱⁿᵍ ᵖˡᶻ ᵇʳᵃⁱⁿˡʸ ᵈᵒˢᵗᵒ ᶠᵒˡˡᵒʷ ᵏᵃʳᵈᵒ ✌︎✌︎