Area 3rd Grade

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length × width.

Front

If a rectangle has a length of 10 cm and a width of 4 cm, what is its area?

Back

40 square centimeters.

Front

What is the area of a rectangle with a length of 8 units and a width of 2 units?

Back

16 square units.

Front

How do you find the area of a shaded part of a rectangle?

Back

Calculate the area of the rectangle and subtract the area of the unshaded part.

Front

If a rectangle has an area of 20 square units and a width of 5 units, what is its length?

Back

Length = Area ÷ Width = 20 ÷ 5 = 4 units.

Front

What is the area of a rectangle with a length of 7 units and a width of 3 units?

Back

21 square units.

Front

What does 'square units' mean when measuring area?

Back

It refers to the number of unit squares that can fit within a given area.

Front

If the area of a rectangle is 10 square units and its length is 5 units, what is its width?

Back

Width = Area ÷ Length = 10 ÷ 5 = 2 units.

Front

What is the area of a rectangle with a length of 5 cm and a width of 4 cm?

Back

20 square centimeters.

Front

How can you determine if a shape is a rectangle?

Back

A rectangle has four right angles and opposite sides that are equal in length.