Question

the slant height of a frustum of a cone is 4 cm and the perimeter of its circular ends are 18 cm and 6 cm. find the curved surface area of the frustum and the volume of frustum in terms of given measurement. Are the curved surface area and the volume of the frustum numerically equal? explain it truthfully.​

Answer 1

Step-by-step explanation:

Given:

l=4 cm

Circumference of a circular end =18 cm

⇒2πr

1

=18

⇒π×r

1

=

2

18

=9 ...............................(1)

Circumference of other circular end =6 cm

⇒2πr

2

=6

⇒πr

2

=

2

6

=3..........................................(2)

Adding (1) and (2)

Curved surface area

=π(r

1

+r

2

)l

=(9+3)×4

=48 cm

2

Answer 2

Answer:

Answer is Attached ✔️

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