Answer:
Stop cheating on the test
9
Hope this helps :)
Sum of the angles of a polygon is (n-2)*180
Each angle is (n-2)*180/n
140 = (n-2)*180/n
140n = 180n - 360
-40n = -360
n = 9
1)
Parameter = 10+7+3+8+4+8+3+7
Parameter = 50 ft
2)
Area = Area 1 + Area 2
Area = (10x7) + (4x8)
Area = 70 + 32
Area = 102 Sq. Feet
200 meters were swam in (2*60+42=162) seconds.
(200/50=4) laps were swam.
The time per lap was 162/4=40.5 seconds.
Answer:
B
Step-by-step explanation:
Its basically the perimeter of a circle
