(a(i))[3]
Calculate $\angle BAC$, and show reasons for every step in your working.
(a(ii))[1]
Calculate $\angle CDE$.
(b)[3]
The shaded region $M$ is part of a regular pentagon, and the shaded region $N$ is part of a regular octagon. Calculate $x$.
Mathematics 4024 · O Level · Angles
Angles — practice question
PBQ and RACS lie parallel to each other. BAE and BCD each form straight lines. $AB = AC$, $\angle QBC = 58^\circ$ and $\angle AED = 47^\circ$.