Question

calculate the area of the circle whose inner radius is 5 cm and outer radius is 10 cm​

Answer 1

Question

calculate the area of the circle whose inner radius is 5 cm and outer radius is 10 cm​

Answer:

314.28578

Step-by-step explanation:

TOTAL RADIUS = 5+10 = 15 cm

AREA = πr²

= $\frac{22}{7}$ × 10×10

= 314.28578