Answer:
d 150.7 ft³
Step-by-step explanation:
volume of a cone = πr²h/3
π = 3.14
r = diameter/2 = 8/2 = 4ft
h = 9ft
therefore volume of the cone = (3.14 × 4² × 9)/3 = 150.7 ft³
V=92.92
V=πr2h
3=π·3.142·9
3≈92.92454
380 CENTIMETERS
PI R 2 THEN ROUND
If the trianles are congruent, the sum of three either angles would be equal to 180
so, 87+56+c = 180
c = 180-143
c = 37
SO OPTION C IS YOUR ANSWER....
