Math, asked by royr43940, 2 months ago

The volume and curved surface area of a right circular cone are equal If

height and radius of that cone are h and r respectively then the value of

2+ℎ

2



2ℎ2 will be​

Answers

Answered by manit88
1

Area (C.S.A) of cone =πr

h

2

+r

2

Volume of cone =

3

π

r

2

h

⇒3πvh

3

+9v

2

−s

2

h

2

=(3π×

3

π

×r

2

h×h

3

)+[9(

3

π

)

2

r

4

h

2

]−[π

2

r

2

(h

2

+r

2

)×h

2

]

2

r

2

h

2

[h

2

+r

2

−h

2

−r

2

]⇒

0

Area (C.S.A) of cone =πr

h

2

+r

2

Volume of cone =

3

π

r

2

h

⇒3πvh

3

+9v

2

−s

2

h

2

=(3π×

3

π

×r

2

h×h

3

)+[9(

3

π

)

2

r

4

h

2

]−[π

2

r

2

(h

2

+r

2

)×h

2

]

2

r

2

h

2

[h

2

+r

2

−h

2

−r

2

]⇒

0

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