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35 votes
35 votes
Pls help for #9! whats the area of the shaded region ?

Pls help for #9! whats the area of the shaded region ?-example-1
User Zdravko Zdravkin
by
3.0k points

2 Answers

26 votes
26 votes

Answer:

21.5 sq cm

Explanation:

Area of Square:

A= LXW= 10x10= 100 sq cm

Area of Circle=

A=πr²

Radius= D/2= 10/2= 5 cm

A=3.14(5²)

A=3.14(25)= 78.5 sq cm

Shaded Region= 100-78.5= 21.5

The area of the shaded region is 21.5 sq cm.

User Eloone
by
2.7k points
14 votes
14 votes

Answer:

21.5

Explanation:

square is 10x10 = 100

circle is A=πr2=π·5²≈78.54

100-78.54 = 21.46 = 21.5

User MickG
by
3.2k points