Question 15

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waecmaths question: 

In the diagram  find xo + yo

Option A: 

360o

Option B: 

300o

Option C: 

270o

Option D: 

180o

waecmaths solution: 

$\begin{align}  & \angle PQR=\angle QRS=y\,\,\,\,\,\{alternate\text{ angles }\!\!\}\!\!\text{ } \\ & x+y={{180}^{\circ }}\text{    }\!\!\{\!\!\text{ sum of }\angle \text{s on a straight line }\!\!\}\!\!\text{ } \\\end{align}$

maths year: