Answer:
7800 is your surface area
Step-by-step explanation:
5 x 12 x 10 x 13= 7800
7/12=0.583333333333
B) 75π cm³
The volume of a cone is given by the formula ...
V = (1/3)πr²h
Your cone has r = 5 cm and h = 9 cm. Putting these values into the formula gives ...
V = (1/3)π(5 cm)²(9 cm) = 75π cm³
∠A=0
<u>-------------------------</u>
hope it helps...
have a great day!!
C)
Just see the length of the R line, A and B are almost the same large when you add them.
0.48780487804
