Find the diameter of circle whose area = 962.5 cm square
Answers
Answered by
44
hey mate here's ur answer
let the radius of circle be r cm
then diameter = 2r
given, area of circle = 962.5 cm²
but area of circle = πr²
=> πr² = 962.5
=> (22/7)*r² = 962.5 [π = 22/7]
=> r² = (962.5/22)*7
=> r² = 43.75*7
=> r² = 306.25
=> r = 17.5
so, diameter = 2*17.5 = 35 cm
let the radius of circle be r cm
then diameter = 2r
given, area of circle = 962.5 cm²
but area of circle = πr²
=> πr² = 962.5
=> (22/7)*r² = 962.5 [π = 22/7]
=> r² = (962.5/22)*7
=> r² = 43.75*7
=> r² = 306.25
=> r = 17.5
so, diameter = 2*17.5 = 35 cm
Answered by
30
Answer:
Step-by-step explanation:
Area of circle = 962.5cm square
But ,area of a circle = πr^2
So,
A.T.Q,
πr^2=962.5
22/7*r^2=962.5
r^2=962.5*7/22
r^2=306.25
r=√306.25
r=17.5 cm
Radius of circle = 17.5 cm
Diameter of circle = 2*radius of circle
=2*17.5
=35 cm
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