A cone's height is equal to the radius of its base. The area of its base is 1,386 square units. The approximate radius of the co
ne's base is____ units. The approximate volume of the cone is ____cubic units. Use . Pie= 22/7
1 answer:
Answer:
Step-by-step explanation:
The area of the base is given by the formula ...
A = πr²
so the radius is ...
r = √(A/π) = √(1386/(22/7)) = √441 = 21 . . . units
__
The volume is given by ...
V = (1/3)Bh
where B is the area of the base, and h is the height (equal to the radius). Filling in the numbers, we have ...
V = (1/3)(1386)(21) = 9702 . . . . cubic units
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