IB Maths AA SL Topic 3: Geometry and trigonometry questions

Exam-style questions in the shape of Paper 1 and Paper 2, with full markschemes. Read the markscheme, or type, photograph or draw your answer and get it marked.

Question 1

Paper 1, no calculatorMedium6 marks

A square-based right pyramid models a roof structure. The side length of its horizontal base is 4 m4\text{ m} The apex SS is vertically above the centre OO of the base, and SO=22 mSO=2\sqrt{2}\text{ m} Let AA be a vertex of the base.

(a)

Determine the distance OAOA

[2]
(b)

Hence determine the distance SASA

[2]
(c)

Determine the angle between SASA and the plane of the base. Give your answer in degrees.

[2]

Question 2

Paper 1, no calculatorMedium6 marks

Figure 1 shows a point PP on the unit circle. The angle θ\theta is measured anticlockwise from the positive xx-axis to OPOP and θ\theta lies in quadrant II.

θ5/13POxy
(a)

Determine cos⁡θ\cos\theta and tan⁡θ\tan\theta

[3]
(b)

Hence, determine the exact values of sin⁡2θ\sin 2\theta and cos⁡2θ\cos 2\theta

[3]

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