find the volumes of the following objects cones radius = 10cm​

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find the volumes of the following objects cones radius = 10cm​

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2 thoughts on “find the volumes of the following objects cones radius = 10cm​”

  1. Answer:

    [tex]\frac{2200x}{21} cm^{3}[/tex]

    Step-by-step explanation:

    Volume of cone = [tex]\frac{1}{3}[/tex] π [tex]r^{2} h[/tex]

    Given : r = 10cm , let h = x cm

    ⇒ Volume of cone = [tex](\frac{1}{3})( \frac{22}{7}) (10^{2})(x)[/tex]= [tex]\frac{2200x}{21} cm^{3}[/tex]

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  2. Step-by-step explanation:

    Volume of cone=

    3

    1

    πr

    1

    2

    h

    1

    =

    3

    1

    π(

    2

    r

    )

    2

    ×

    2

    h

    =

    3

    1

    π(

    2

    10

    )

    2

    ×

    2

    h

    =

    6

    25πh

    cm

    3

    Volume of frustum ABCD=

    3

    1

    πh

    2

    (R

    2

    +r

    2

    +Rr)

    =

    3

    1

    π×

    2

    h

    (10

    2

    +5

    2

    +10×5)

    =

    6

    175πh

    Required ratio=

    6

    175πh

    6

    25πh

    =

    175

    25

    =

    7

    1

    =1.7

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