Question

Radiii of the top and base of frustum Are 14 and 8 , it's height is 8cm find it's CSA

Answer 1

Given :

• Radius of the top , R = 14cm
• Radius of the base, r = 8cm.
• Height = 8cm

To Find :

The Curved surface area of frustum

Solution :

We know that,

Curved surface area of frustum

$\sf=\pi\times\:l(R+r)$

$\sf=\dfrac{22}{7}\times8(14+8)$

$\sf=\dfrac{22}{7}\times8\times22$

$\sf=\dfrac{176}{6}\times22$

$\sf=\dfrac{3,872}{7}$

$\sf=553.14cm^2$

Hence,the Curved surface area of frustum is 553.14 cm².

Answer 2

Answer:

Refer to the attachment mate.......