square units (cm²) — Area is measured in square units such as cm².

To find the area of a rectangle you:

multiply length by width — Area of a rectangle = length × width.

Chapter 6

Space

Finding the area of squares and rectangles and working with angles on a straight line — with an interactive exercise.

We find the area of squares and rectangles, and work with angles.

Area of a rectangle = length × width, measured in square units (cm²). A rectangle 6 cm by 4 cm has area 6 × 4 = 24 cm². Angles on a straight line add up to 180°.

Remember

Area of a rectangle = length × width (in cm²).
Straight line = 180° · Right angle = 90°.

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