## 3.2 Non-right angled triangle trigonometry , sine rule, cosine rule & area of triangle

Calculator Allowed: Yes Question Answer Transcription of this question: 2.[Maximum mark: 6]The diagram below shows triangle PQR_ The length Of [PQI is 7 cm, the length Of [PRIis IOcm,and PÖR is 75’diagram not toscale(a)(b)7 cm10 cmFind pkQFind the area Of triangle PQR.[3 marks][3 marks]

## 3.2 Non-Right Angled Triangle Trigonometry, Sine Rule, Cosine Rule, etc.

Calculator Allowed: Yes Question Answer Transcription of this question: 4.imum mark: 8]The diagram below shows a triangle ABD with AB = 13 cm and AD —6 5 cmLet C be a point on the line BD such that BC = AC— 7 cm(a)(b)1377Find the size of angle ACB.Find the size of angle CADdiagram not toscale6.5[3 […]

## 3.2 Non-Right Angled Triangle Trigonometry, Sine Rule, Cosine Rule, etc.

Calculator Allowed: Yes Question Answer Transcription of this question: 6.[Maximum mark: 71The following diagram shows the triangle ABC.13.6diagramnot to scale= 13.6 cm and the area is 20 cm2The angle at C is obtuse, ACFind AOB(a)(b) Find AB[4 marks][3 marks]

## 3.2 Non-Right Angled Triangle Trigonometry, Sine Rule, Cosine Rule, etc.

Calculator Allowed: Yes Question Answer Transcription of this question: 5.[Maximum mark: 71There is a vertical tower TA Of height 36m at the base A Of a hill. A straightpath goes up the hill from A to a point U. This information is represented by thefollowing diagram.36 mThe path makes a 4′ angle with the horizontal.The […]

## 3.2 Non-Right Angled Triangle Trigonometry, Sine Rule, Cosine Rule, etc.

Calculator Allowed: Yes Question Answer Transcription of this question: [Maximum mark: 6]The following diagram shows triangle ABC.9(a)(b)7A=7cm, BC=9cm and AicFind AC.Find BAC120′-120′.diagramnot to scale[3 marks][3 marks]

## 3.2 Non-Right Angled Triangle Trigonometry, Sine Rule, Cosine Rule, etc.

Calculator Allowed: Yes Question Answer Transcription of this question: 4.[Maximum mark: 6]Consider the triangleABC,where AB=IO, BC=7 and CAB -300(a)(b)Find the two possible values Of ACB.Hence, find ABC , given that it is acute.[4 marks][2 marks]

## 3.2 Non-Right Angled Triangle Trigonometry, Sine Rule, Cosine Rule, etc.

Calculator Allowed: Yes Question Answer Transcription of this question: [Maximum mark: 6]The following diagram shows APQR , where RQ(a)(b)(c)7Find Ri)QFind PR.Find the area of APQR= 9 cm, 70′ and -45′.diagramnot to scale4[l mark][3 marks/[2 marks/

## 3.2 Non-Right Angled Triangle Trigonometry, Sine Rule, Cosine Rule, etc.

Calculator Allowed: Yes Question Answer Transcription of this question: 9.[Murimum mark: 15]The following diagram shows a triangle ABC5p6BC=6, CÅB=0.7 radians, AB=4p, AC=5p , where p(i) Show that p 2 (41 36 _(ii) Find p _Consider the circle with centre B that passes through the point C. The circle cuts theline CA at D, and ADB […]

## 3.2 Non-Right Angled Triangle Trigonometry, Sine Rule, Cosine Rule, etc.

Calculator Allowed: Yes Question Answer Transcription of this question: 3.[Maximum mark: 6]The following diagram shows a triangle ABC.diagramnot to scale500AThe area of triangle ABC is 80 cm218= x cm and BAC(a)(b)Find x.Find BC[3 marks/[3 marks/

## 3.2 Non-Right Angled Triangle Trigonometry, Sine Rule, Cosine Rule, etc.

Calculator Allowed: Yes Question Answer Transcription of this question: 5.[Maximum mark: 71In triangle ABC, 6cm and AC=8cm. The area Of the triangle is 16cm(a)(b)Find the two possible values forGiven that is obtuse, find BC[41[31