4MA1/2HR Jun 2022, Question 15: Choosing Between Sine and Cosine Rules
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2HR (Higher) · Calculator · 3 marks
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Using kite ABCD with AB = 6 cm, BC = 11 cm and angle ABC = 118°, calculate the kite's area, giving the answer to 3 significant figures.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 1Diagonal AC splits the kite into two equal triangles, ABC and ADC.
- 2Area ABC = ½ × 6 × 11 × sin 118° = 29.13…
- 3Kite = 2 × 29.13… = 58.27… = 58.3 cm²
Answer58.3
Stuck on a step? Read the free lesson: Choosing Between Sine and Cosine Rules
Practise more choosing between sine and cosine rules questions
Real 4MA1 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 choosing between sine and cosine rules
Also searched as: 4MA1 2HR June 2022 · 4MA1/2HR · 4ma1 jun22 2hr · question 15.
Lemmara is an independent study tool, not affiliated with or endorsed by Pearson Edexcel. The worked solutions are Lemmara’s own.