IB Maths AI HL 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 1Hard6 marks

A flat map uses Cartesian coordinates to locate radio beacons. The segment ABAB lies on the line 3x−4y−10=03x-4y-10=0 and its midpoint is M(2,−1)M(2,-1)

(a)

Determine the equation of the perpendicular bisector of ABAB giving your answer in the form ax+by+c=0ax+by+c=0

[2]
(b)

Beacons CC and DD have coordinates C(−2,4)C(-2,4) and D(4,2)D(4,2) An emergency receiver QQ must be equidistant from AA and BB and also equidistant from CC and DD

Using your answer to (a), determine the exact coordinates of QQ

[4]

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