What is the volume of this dam?

The teacher gave me a book.

The teacher gave me some advice.

A conic section is a part of geometry, including circles, ellipses, hyperbolas, and parabolas.

This bicone shape is mathematically very interesting.

He was wearing a cone-shaped hat.

My friend was diagnosed with keratoconus.

It's difficult to solve this formula.

He solved complex mathematical problems using his new calculator.

His calculating nature sometimes causes problems.