The base area of a cone is 38.5 cm² . Its volume is 77 cm³. Find its height.
Answers
Answered by
14
Answer:
Height of the cone = 6 cm
Step-by-step explanation:
The base area of a cone is 38.5 cm²
base area of a cone = πR²
=> πR² = 38.5
Volume of a cone is 77 cm²
Volume of a cone = (1/3)πR²H
=> (1/3)πR²H = 77
putting πR² = 38.5
=> (1/3) (38.5) H = 77
=> (1/3)H = 2
=> H = 6
Height of the cone = 6 cm
Answered by
4
Answer:
volume of cone = 1/3πr²h
base are,πr²=38.5
VOLUME=77
77=1/3 x 38.5 x h
h=77 x 3/38.5
h=6 cm
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