Question

A fez, the cap used by the turks, is shaped like the frustum of a cone. if its radius on the open side is 10 cm, radius at the upper base is 4 cm and its slant height is 15 cm, find the area of material used for making it

Answer 1

Refer to the attachment for the answer...

mark it as BRAINLIEST

Answer 2

Answer:  The volume is $260\pi$ cube cm.

Step-by-step explanation:

Since, The volume of the frustum,

$V=\frac{\pi}{3}h(R^2+r^2+Rr)$

Where R is the radius of its lower base ( large base )

r is the radius of its upper base ( Lower base ),

And, h is its height,

Here, R = 10 cm, r = 4 cm ,

And, height, h = √(15^2-10²) = 5 cm

Thus, the volume of the given frustum,

$V = \frac{\pi}{3}\times 5\times ( 10^2+4^2+10\times 4)$

$=\frac{\pi}{3}\times 5\times(100+16+40}$

$=\frac{\pi}{3}\times 5\times 156$

$=260\pi$ cube cm.