judith1547 judith1547

01-05-2020
Biology

contestada

A circle with radius of 9 cm sits inside a circle with radius of 11 cm.
What is the area of the shaded region?
Round your final answer to the nearest hundredth.

Respuesta :

esekolilian esekolilian

07-05-2020

Answer:

125.6

Explanation:

Area of a circle = πr^2

Area of circle 1 = 3.14 × 11 × 11

=379.94cm^2

Area of circle 2= 3.14 × 9 ×9

=254.64cm^2

Area of a shaded region

=379.94cm^2 - 254.64cm^2

=125.60cm^2

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