the height of cone is 15 CM if its volume is 1530 cm3 find the radius of the base
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Anonymous:
It is 1570 but u typed as 1530
in qus u wrote 1530....check it
but it is wrong
In the image it is 1570
sry i didnt ckeck the pic ....
but in written its 1530
Answers
Answered by
2
volume of cone =1/3×3.14×r×r×15
1570=5×3.14×r×r cm square
1570=16.20×r×r cm square
1570/16.20=r×r cm square
7850/81=r×r cm square
root 7850/9 cm=r
1570=5×3.14×r×r cm square
1570=16.20×r×r cm square
1570/16.20=r×r cm square
7850/81=r×r cm square
root 7850/9 cm=r
Answered by
0
Height of the cone = 15 cm
Volume of cone = 1570 cm³
⇒ 1/3πr²h = 1570 cm³
⇒ 1/3 *3.14* r²* 15 = 1570
⇒ r² = 1570* 1/15* 1/3.14 *3
⇒ r² = 100
⇒ r = 10 cm
The radius is 10 cm
Volume of cone = 1570 cm³
⇒ 1/3πr²h = 1570 cm³
⇒ 1/3 *3.14* r²* 15 = 1570
⇒ r² = 1570* 1/15* 1/3.14 *3
⇒ r² = 100
⇒ r = 10 cm
The radius is 10 cm
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