Question

The radius of a circle is multiplied by 10. Its area is _____ times bigger than the original circle.

Answer 1

Think of the radius as 1, calculate the area.
Now think of the radius as 10, calculate the area.
What is the ratios of their areas?

Answer 2

Divide:

\( \color{Black}{\Rightarrow \Large {\text{Area of the new circle} \over \text{Area of originial circle}} }\)

Answer 3

That'll be your answer.

Answer 4

mmmm

Answer 5

100 right?