raneanea raneanea

23-01-2017
Mathematics

contestada

Cab some one please answer this!!!!!!!!

find area of shaded part

(for the second image measure of line segment bc equals to 4 cm).

Cab some one please answer this find area of shaded part for the second image measure of line segment bc equals to 4 cm class=

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nobillionaireNobley nobillionaireNobley

31-01-2017

For figure 1:
Area of shaded region = 80/360 x π x 9^2 = 56.55 square cm

For figure 2:
Area of shaded region = 120/360 x π x 7^2 - 120/360 x π x 3^2 = π/3(49 - 9) = 40π / 3 = 41.89 square cm

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