Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Chapter
Shape and Space 10
18 practice questions
Practice questions
1–3 of 3 · Hard
Question 1
2 marks · Hard
Answer and see the solution →Calculate the value of .
Question 2
4 marks · Hard
Answer and see the solution →In triangle DEF, side DE = 11.3 cm, side EF = 8.7 cm, and angle DEF = 38°. Calculate the length of side DF. Give your answer correct to 3 significant figures.
Question 3
4 marks · Hard
Answer and see the solution →Explain why the formula can be used to calculate the area of any triangle, not just right-angled triangles.