Compound shapes — area & perimeter
Edexcel GCSE Maths revision on Compound shapes — area & perimeter. Aligned to the Pearson Edexcel GCSE Mathematics 1MA1 specification. This bank has 16 practice questions on this topic.
Sample questions (3 of 16)
-
Question 1
What is the perimeter of a rectangle that has a length of 8 cm and a width of 4 cm?
- A) 24 centimetres
- B) 32 centimetres
- C) 12 centimetres
- D) 28 centimetres
Show answer
Answer: 24 centimetres
The correct answer is 24 centimetres. You calculate this by adding all four sides together: 8 + 4 + 8 + 4, or by using the formula 2 times (length plus width).
-
Question 2
An L-shaped polygon is formed by a 6 cm by 4 cm rectangle and a 2 cm by 2 cm square attached to one side. What is the total area of this shape?
Show answer
Answer: 28
The area is 28. You calculate the area of the rectangle (6 times 4 equals 24) and the area of the square (2 times 2 equals 4), then add them together to get 28 square centimetres.
-
Question 3
Which expression represents the total perimeter of an L-shaped figure with an external horizontal base of 10 cm and an external vertical height of 8 cm?
- A) Thirty six cm
- B) Forty four cm
- C) Thirty two cm
- D) Forty zero cm
Show answer
Answer: Thirty six cm
The correct answer is Thirty six cm. In an L-shape where the corner is cut out, the sum of the horizontal segments equals the base, and the sum of the vertical segments equals the height, meaning the perimeter is simply 2 times (width plus height).
Want to test yourself on the remaining cards for this topic?
13 more questions on Compound shapes — area & perimeter — plus mistakes tracking and spaced repetition across the whole Maths spec.