Question

Find the volume of a come with a slant edge of t 5cm and radius 3 cm . Find also the total surface area

Answer 1

Answer:

volume will be..... 1/3 πr^2h = 1/3 ×22/7 ×3×3×4 = 37.71 cm^3

the TSA will be..

$\pi {r}^{2} h + \pi \: r \: l$

we get... 22/7 ×9×4 +22/7 ×3×5

113.04 + 47.1 = 160.14 cm^2 answer...

hope it helps you...

Answer 2

Answer:

We have given that :-

r=3cm, l=5cm

Step-by-step explanation:

We need to find 'h'

So we will use pythagoras theorem:-

• (H×H)=(P×P)(B×B)
• (5×5)=(3×3)(h×h)
• 25=9(h×h)
• 25/9=(h×h)
• 5/3=h
• 1.66=h

• Volume of cone=1/3πr×rh
• Volume of cone=1/3×22/7×9×1.66
• Volume of cone=15.65cm^

• TSA =πr(r+l)
• TSA=22/7×3(3+15.65)
• TSA=175.84cm

HOPE THIS ANSWER WILL HELP YOU