Area of the base of a cone is 1386 sq.cm.and it's height is 28cm. .Find it's volume
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see the base of cone is a circle
therefore area of circle =pie*r*r
therefore 1386=22/7*r²
therefore r²=441
therefore r=21
now u have radius
u have height
the u can able to find the volume of cone by formula 1/3*pie*r²*h
Answered by
1
Answer:
Step-by-step explanation:
B -1386sqcm
H-28 cm
Volume of cone 1/3 πr2h
= 1/3 b.h
= 1/3(πb)h
= 1/3(3.14×1386)28
= 1/3(4352)28
= 1/3 ×121,856
=40618.66 sqcm
I
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