Question

A rectangle is placed around a semicircle as shown below. The length of the rectangle is
4yd
.
Find the area of the shaded region. Use the value
3.14
for
π
, and do not round your answer. Be sure to include the correct unit in your answer.

Answer 1

fan and medal

Answer 2

can you find the diameter of that semi-circle ?

Answer 3

they want me to find the area

Answer 4

@hartnn

Answer 5

Area of shaded region = Area of rectangle - Area of semi circle

so, to get area of semi circle, you will need diameter or radius

Answer 6

so is it SA=360-AS

Answer 7

to find the area of the semi circle do I use π r²

Answer 8

pi r^2

Answer 9

yes
thats correct, but you need 'r'

Answer 10

the did not give me the radius of the circle so do I use 4

Answer 11

and make it into 2

Answer 12

oh and Area of semi-circle is HALF of the area of circle