hi frnds❤
todays question
and answer soon...
i will mark u as brainliest
Attachments:
Answers
Answered by
9
Plz mark as brainliest
Attachments:
Answered by
3
Answer:
135.67 m^3
Step-by-step explanation:
radius of cone = 3 m.
Then, diameter = 3/2 m
height of cone h = 7 m.
volume of cone = (1/3)πr²h
= (1/3) * π * 3² * 7
= (1/3) * (22/7) * 9 * 7
= 198/3
= 66 m³
Height of frustum = 10.5 - 7 = 3.5 m.
∴ Volume of lower portion,
=> (1/3) * (22/7) * 3.5 * (3² + 2² + 3 * 2)
=> (1/3) * (22/7) * 3.5 * (9 + 4 + 6)
=> (1/3) * (22/7) * 3.5 * 19
=> 1463/21
=> 69.67 m³
Hence,
Volume of haystack = 66 + 69.67 = 135.67 m³
#Hope my answer help you!
Similar questions