Examples with solutions for Area of a Circle: Increasing a specific element by addition of.....or multiplication by.......

Exercise #1

How will the area of a circle change if we double its diameter?

Video Solution

Answer

It will increase by 4 times.

Exercise #2

How will the area of a circle change if its radius is doubled?

Video Solution

Answer

It will increase by 4 times.

Exercise #3

How will the area of the circle change if we increase the diameter to 3 cm?

Video Solution

Answer

It will increase by 6πk4+9π4 \frac{6\pi k}{4}+\frac{9\pi}{4} .

Exercise #4

How will the area of the circle change if we increase the radius to 2 cm?

Video Solution

Answer

It will increase by4πr+4π 4\pi r+4\pi