The figure is a trapezoid
A•a^7 = a^8 (add the power (n=1+7=8))
So 2/15 of a mile in 20 min
20 min is 1/3 of an hour
so 2/15 x 3 = mowed lawn/hour
6/15 of a mile
The answer is 8.25... Sorry if I get it wrong.
I think you are asking me for the change in degrees, so its
89-62=27
