Answer:
Perimeter is 20.57 yards.
Explanation:
Perimeter is the distance around the outside of a shape. This shape is a semicircle, that is, half of a circle.
We can calculate the circumference of the circle (that's the distance around the whole circle) and then cut it in half. Then add on the flat, straight side.
Circumference is:
C = pi•d
C = pi•8
C = 25.1327
This is the distance around the whole circle. For the curved part of our shape, we only need half of that.
25.1327/2
= 12.56637
Lastly, we add on the straight side, which was given as 8 yds.
12.56637 + 8
= 20.56637
Round to two decimal places.
20.57
The perimeter is 20.57yds.