At point , three rays and are drawn such that and are opposite rays and lies in…

MATHEMATICS · Multi-part · GCSE · Mathematics · Geometry and Measures · Geometry and Measures

Problem

At point AA, three rays AB,AC,AB, AC, and ADAD are drawn such that ABAB and ADAD are opposite rays and ACAC lies in between them. A student observes that ∠BAC\angle BAC and ∠CAD\angle CAD are equal and concludes that they are vertically opposite angles. (i) Explain why the student's conclusion is incorrect. (ii) Correctly classify the relationship between ∠BAC\angle BAC and ∠CAD\angle CAD with justification. (iii) If ∠BAC=68∘\angle BAC = 68^\circ, find ∠CAD\angle CAD and ∠BAD\angle BAD.

Related theory

Browse the problem library