A circle is cut out of a square as shown.

10 feet

What is the approximate area of the shaded portion of the figure?
A 22 square feet
B 37 square feet
C 69 square feet
D 35 square feet

22 ft^2

Step-by-step explanation:

d of the cirlce=10 ft

Area of cirlce=pi(d^2)/4

=pi×(10^2)/4

=pi×(100)/4

p=pi×25

= Approximately, 78.539 ft^2

Length of square=10ft

Area of square=l^2

=10ft^2

=100 ft^2

Area of shaded portion=Area of square-Area of square

=100ft^2-78.539

=22 ft^2(closest given on the problem)

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the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )