bell work 11-21-24 circles

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 triangle?

Back

A = \frac{bh}{2}

Front

What is the formula for the area of a circle?

Back

A = \pi r^2

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 triangle?

Back

P = a + b + c

Front

Define 'perimeter'.

Back

The perimeter is the total distance around a two-dimensional shape.

Front

Define 'area'.

Back

Area is the amount of space inside a two-dimensional shape.

Front

What does 'circumference' refer to?

Back

Circumference is the distance around a circle.

Front

What is the relationship between diameter and radius in a circle?

Back

The diameter is twice the radius (d = 2r).

Front

How do you calculate the area of a rectangle?

Back

A = b * h, where b is the base and h is the height.