Question

Two concentric circles are of radius 7cm and 5cm.find the area of the portion between two circles.

Answer 1

π(49-25)=24π.....ans.......

Answer 2

Area between two circles = 75.42 cm² (Approx)

Step-by-step explanation:

Given:

Radius (r1) = 7 cm

Radius (r2) = 5 cm

Find:

Area between two circles

Computation:

Area between two circles = π(r1² - r2²)

Area between two circles = (22/7)(7² - 5²)

Area between two circles = (22/7)(49 - 25)

Area between two circles = (22/7)(24)

Area between two circles = 75.42 cm² (Approx)

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