bell work 11-21-24 circles

Front

What is the formula for the area of a triangle?

Back

A = \frac{1}{2}bh

Front

What is the formula for the circumference of a circle?

Back

C = \pi d

Front

What is the formula for the perimeter of a rectangle?

Back

P = 2b + 2h

Front

What is the formula for the area of a rectangle?

Back

A = bh

Front

What is the formula for the area of a circle?

Back

A = \pi r^2

Front

Define 'circumference' in relation to circles.

Back

Circumference is the distance around a circle, calculated as C = \pi d or C = 2\pi r.

Front

What does 'radius' mean in the context of a circle?

Back

The radius is the distance from the center of the circle to any point on its circumference.

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the radius: d = 2r.

Front

What is the formula for the area of a sector of a circle?

Back

A = \frac{\theta}{360} \times \pi r^2, where \theta is the angle in degrees.

Front

What is the formula for the volume of a cylinder?

Back

V = \pi r^2 h, where r is the radius and h is the height.