Area and Circumference

Front

What does area mean?

Back

The amount of space inside a shape.

Front

What does perimeter mean?

Back

The distance around the shape.

Front

Why do you need to divide by 2 when solving the area of a triangle?

Back

A triangle is half the size of a rectangle or square.

Front

Can you use the formula A = ½bh to find the area of every triangle?

Back

True.

Front

What is the area of a square with a side length of 4 cm?

Back

16 square cm.

Front

What is the formula for the area of a rectangle?

Back

A = length × width.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr or C = πd.

Front

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

Back

The diameter is twice the radius.

Front

How do you find the area of a triangle using its base and height?

Back

A = ½ × base × height.

Front

What is the perimeter of a rectangle with length 5 cm and width 3 cm?

Back

16 cm.