Question

What is the approximate area of the shaded region?



A.
178.5 square centimeters

B.
100 square centimeters

C.
78.5 square centimeters

D.
21.5 square centimeters

Answer 1

http://lv.k12.com/mediaFiles/Ninth_Grade/Math/Unit17525/Lesson68695/VHS_PA_S2_03_L212_L312_LQ_Q1.gif

Answer 2

arear = pi*r^2

Answer 3

Can you find it out?

Answer 4

Area of square - area of circle = area of shaded region...

Answer 5

ahem.,,

Answer 6

\[\pi(10)^2\]

Answer 7

d= 10
so radius is 5..

Answer 8

Its 68.6

Answer 9

\[(10^2) - (\pi5^2) = area of shaded region\]

solve...

Answer 10

100 - 25pi...

Answer 11

C.?

Answer 12

it's 21.5...

Answer 13

100 - 25pi
= 100 - 25(3.14)
= 1000 - 78.5

= 21.5
D.

Answer 14

Option D