4024/11 May/Jun 2020, Question 8: Composite Perimeter, Area and Volume
Cambridge O Level Mathematics 4024 · Paper 11 (Non-calculator) · Non-calculator · 3 marks
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
A square PQUV of side 6 cm and a rectangle QRST of width 4 cm have equal areas. Work out the perimeter of the combined shape PRSTUV.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 1Area of square = 6 × 6 = 36 cm²
- 24 × h = 36, so length of rectangle = 9 cm
- 3PR = 6 + 4 = 10 cm, RS = 9 cm, ST = 4 cm, TU = 9 − 6 = 3 cm, UV = 6 cm, VP = 6 cm
- 4Perimeter = 10 + 9 + 4 + 3 + 6 + 6 = 38 cm
Answer38
Stuck on a step? Read the free lesson: Composite Perimeter, Area and Volume
Practise more composite perimeter, area and volume questions
Real 4024 past-paper questions, marked on your working like the exam, with a worked solution for every part.
Practise free on LemmaraMore past-paper questions on composite perimeter, area and volume
Also searched as: 4024/11/M/J/20 · 4024_s20_qp_11 · 4024 s20 11 · question 8.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.