8th - December 16th Classwork

Front

What is the definition of a radius in a circle?

Back

A radius is a line segment from the center of the circle to any point on its circumference.

Front

What is the definition of a diameter in a circle?

Back

A diameter is a line segment that passes through the center of the circle and has its endpoints on the circumference.

Front

How do you calculate the volume of a sphere?

Back

The volume of a sphere is calculated using the formula V = (4/3)πr³, where r is the radius.

Front

What is the formula for the volume of a cone?

Back

The volume of a cone is calculated using the formula V = (1/3)πr²h, where r is the radius of the base and h is the height.

Front

What is the formula for the volume of a cylinder?

Back

The volume of a cylinder is calculated using the formula V = πr²h, where r is the radius of the base and h is the height.

Front

If the radius of a circle is 5 cm, what is the diameter?

Back

The diameter is 10 cm, since the diameter is twice the radius.

Front

What is the volume of a sphere with a radius of 3 cm?

Back

The volume is 36π cm³ or approximately 113.04 cm³.

Front

What is the volume of a cone with a radius of 2 cm and a height of 3 cm?

Back

The volume is approximately 12.56 cm³.

Front

What is the relationship between radius and diameter?

Back

The diameter is always twice the length of the radius.

Front

What is the volume of a cylinder with a radius of 4 cm and a height of 5 cm?

Back

The volume is 80π cm³ or approximately 251.33 cm³.