He wants to learn deeply about set theory.

In this area, there is a lot of snow accumulation.

Knowledge accumulates day by day.

He used the radius to find the area of the circle.

In math class, we learned about finding the area of a circle.

The cross product plays an important role in vector calculations.

Do you remember the method of calculating the dot product you learned in linear algebra?

A vector product is an operation that generates a new vector from two vectors.

What is the cross-sectional area of this pillar?

Mr. Morozumi is my best friend.