Question

A metallic right circular cone of height 9 cm and base radius 7 cm is melted into a cuboid whose length is 11cm and breadth 6 cm. find the length of cuboid. Also find its lateral surface area

Answer 1

Bro you have done a mistake, you have told length and then again asked the length, so I have named the new measure as it's height.

Answer:

The height of the cuboid is 7cm.

Step-by-step explanation:

Volume of cone=1/πr^2h

1/3×π×(7)^2×9==>462cm^3.

As the same volume of cone is melted to form a cuboid so in this case,

Volume of the cone=Volume of the cuboid

462=l×b×h

462=11×6×h

462=66h

Therefore, h=7 cm.

Therefore the height of the given cuboid is 7cm.

I hope my answer helped you, please mark me as brainliest.

And if you have any doubt feel free to ask in the comment section below.

Also, I am attaching a pic so that you can understand it better.

Thank you.