Question

A glass in the form of a frustum of a cone has
radii 8 cm and 6 cm and slant height 30 cm.
Find the curved surface area of glass.​

Answer 1

heYa dude ❣️

plz refer to pic

hope it works out

and mark it as brainliest answer

Answer 2

Answer:-

➣

C.S.A of Glass = $\bf{1320 \: cm^2}$

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

• Given:-

radii = ${\bf{8 \: cm}} \: and \: {\bf{6 \: cm}}$

slant height =$\bf{30 \: cm}$

• To Find:-

Curved Surface Area =$\bf{?}$

• Solution:-

We know :-

$\bf {\boxed{C.S.A \: of \: Frustum = {\pi l(R+r)}}}$

Hence,

$\implies {\pi \times 30(8+6)}$

$\implies{\pi \times 30 \times (14)}$

• $\large{Putting \: {\bf{\pi = \frac{22}{7}}}}$

$\implies{\frac{22}{7}}\times 420$

$\implies{\frac{22}{\cancel{7}}}\times \cancel{420}$

$\implies{22 \times 60}$

$\implies \bf{1320}$

Therefore,

C.S.A of glass is $\bf{1320 \: cm^2}$

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬