A poor artist on the street makes funny cartoons for
children and earns his living. Once he made a comic
face by drawing a circle within a circle, the radius of
the bigger circle being 30 cm and that of smaller being
20 cm as shown in the figure. What is the area of the
cap given in this figure?
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400√2
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Answer:
R = 30 AND r = 20
Step-by-step explanation:
area of the cap ( triangle) = area of bigger circle - area of smaller circle
= pie x R² + pie x r²
= pie x (R²-r²)
= 3.14 x( 30² - 20²)
= 3.14 x ( 900 - 400)
= 3.14 x 500
= 1570 cm²
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