Answer:
10. 66 feet
11. 132 millimeters
12. 88 cm
Step-by-step explanation:
since both 10. and 11. are diameters we simply just multiply by 22/7
for answer twelve you just multiply the radius by 2 to find the diameter (28) and from there we multiply by 22/7 to find the circumference
angle M = 98
since they all equal 180
do 3x-16+x+6+x = 180 now add 10 two both sides and get
3x+x+x = 190
5x = 190
x = 38
now plug that in to 3x-16 to get 98
Using log properties
Then
Plug in the knowns
72178.4777
