Year 8

Composite perimeter and area

Free examples and worked answers. No account needed.

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Example 1

L-shaped region
L-shaped regionA rectangle with its lower-right rectangular corner removed. Overall width 12 cm, overall height 10 cm, cut-out width 3 cm, cut-out height 4 cm. Diagram not to scale. Use the labelled measurements.12 cm10 cm3 cm4 cm
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Answer:

Example 2

L-shaped region
L-shaped regionA rectangle with its lower-right rectangular corner removed. Overall width 16 cm, overall height 9 cm, cut-out width 5 cm, cut-out height 3 cm. Diagram not to scale. Use the labelled measurements.16 cm9 cm5 cm3 cm
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Answer:

Example 3

L-shaped region
L-shaped regionA rectangle with its lower-right rectangular corner removed. Overall width 16 cm, overall height 8 cm, cut-out width 5 cm, cut-out height 2 cm. Diagram not to scale. Use the labelled measurements.16 cm8 cm5 cm2 cm
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Answer: