Question

if the radius of circle is increased by 50% find area of circle is increase ​

Answer 1

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Answer 2

☆Answer☆

The area of circle will increase by 125%.

☆Explanation☆

Let the radius of the circle = r

Let the radius of the circle = rThen original area = πr²

Increased radius 

=> r + 50% of r

=> r + (50r/100)

=> 150r/100

=> 1.5 r

• New area = π(1.5r)² = 2.25πr²

Percentage Increase

=> {(2.25πr² - πr²)/πr² × 100}%

=> (1.25πr²/πr²)×100 %

=> (1.25 × 100) %

=> 125 %

Hence, the area of circle Increased is 125%.