Question

Find the ratio of the areas of two circles of radii 8 cm and 12 cm comparing the smaller circle to the larger circle. Write the correct answer in the space below. Don't forget to simplify your ratio (both areas have pi in them). Please write your ratio as a fraction.

Answer 1

4π : 9π

Explanation:

→ Find the area of circle with radius 8

π × 8² = 64π

→ Find the area of circle with radius 12

π × 12² = 144π

→ Simplify ratios

64π : 144π ⇒ 4π : 9π