Question

If the area of a circle is equal to its circumference then its radius is doubled .is this correct​

Answer 1

Answer:

yes

Step-by-step explanation:

as pie.r^square = 2.pie.r

Answer 2

Answer: [YES]

=> 300%

Step-by-step explanation:

∵ If radius of the circle = r

=> Then, Area of the circle = πr^2

-> If we doubled the radius then radius = 2r

And Area of the circle = π(2r) ^2  = 4πr^2

 ⇒ Increased Area = 4πr^2  − πr^2  = 3πr^2

=> Percentage increased in area =  Increased area/

Original area  × 100%

=> 3πr^2/πr^2  

× 100%

=3 × 100% = 300%