Area of Circles

Front

What is the distance from the center to any point on the circle?

Back

Radius

Front

What is the distance across a circle through its center called?

Back

Diameter

Front

What is the formula to calculate the area of a circle?

Back

Area = π × radius²

Front

If the radius of a circle is 3 cm, what is its area?

Back

28.26 cm²

Front

If the diameter of a circle is 10 cm, what is its radius?

Back

5 cm

Front

What is the value of π (pi) approximately?

Back

3.14

Front

Calculate the area of a circle with a radius of 7 cm using π = 3.14.

Back

153.86 cm²

Front

What is the area of a circle with a diameter of 8 cm?

Back

50.24 cm²

Front

If the radius of a circle is doubled, how does the area change?

Back

The area increases by a factor of 4.

Front

What is the relationship between the diameter and radius of a circle?

Back

Diameter = 2 × Radius