Grade 3 Math Practice

Front

What is the formula to calculate the perimeter of a triangle?

Back

Add the lengths of all three sides together.

Front

What is the unit of measurement for perimeter?

Back

Common units include centimeters (cm), inches (in), and feet (ft).

Front

What is the formula to calculate the area of a rectangle?

Back

Area = length × width.

Front

What does 'area' measure?

Back

Area measures the amount of space inside a shape.

Front

If a triangle has sides of 3 cm, 4 cm, and 5 cm, what is its perimeter?

Back

The perimeter is 12 cm.

Front

What is the area of a rectangle with a length of 5 ft and a width of 3 ft?

Back

The area is 15 ft².

Front

How do you find the perimeter of a polygon?

Back

Add the lengths of all the sides together.

Front

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

Back

The area is 16 cm².

Front

If a polygon has a perimeter of 20 cm and one side is 5 cm, what is the total length of the other sides?

Back

The total length of the other sides is 15 cm.

Front

What is the difference between perimeter and area?

Back

Perimeter measures the distance around a shape, while area measures the space inside it.