An acute angle is infact 90 degrees, therefore your answer is correct.
we know that
surface area of the cylinder=2*{area of the base}+perimeter of base*height
area of the base=pi*r²
r=40 ft
Area of base=pi*40²
Area of the base=1600*pi ft²
Perimeter of the base=2*pi*r
Perimeter of the base=2*pi*40
Perimeter of the base=80*pi ft
surface area of the cylinder=2*1600*pi+80*pi*17
surface area=4560*pi ft²
therefore
the answer is the option
4560π ft2
if 3/4 of the grapes are green, than 1/4 are purple.
5/8*1/4=5/32
5/32 *1/10= 1/64
Each friend gets 1/64th of a pound of grapes
There’s no example or picture what are you asking for what awnser are you trying to fine
