Paper 2 Higher - Sample Assessment Q21 Answers
21 In triangle RPQ,
(a) Assuming that angle PQR is an acute angle, calculate the area of triangle RPQ.
Give your answer correct to 3 significant figures
(4 marks)
(b) If you did not know that angle PQR is an acute angle, what effect would this have on your calculation of the area of triangle RPQ?
(1 mark)
(Total for Question 21 is 5 marks)
- RP = 8.7 cm
- PQ = 5.2 cm Angle
- PRQ = 32°
(a) Assuming that angle PQR is an acute angle, calculate the area of triangle RPQ.
Give your answer correct to 3 significant figures
(4 marks)
(b) If you did not know that angle PQR is an acute angle, what effect would this have on your calculation of the area of triangle RPQ?
(1 mark)
(Total for Question 21 is 5 marks)
Answers
21 a
Answer
130
Notes
Answer
130
Notes
21 b
C1 - angle PQR is obtuse so need to find area of two triangles
C1 - angle PQR is obtuse so need to find area of two triangles