waecmaths question:
From the diagram which of the following is true?
Option A:
m + n + p =180o
Option B:
m + n = 180o
Option C:
m = p + n
Option D:
n = m + p
waecmaths solution:
$\begin{align} & \angle ACB=p\text{ }\{vertically\text{ }opposite\text{ }angles\} \\ & n=m+p\text{ }\{sum\text{ }of\text{ }the\text{ }opp\text{ }\operatorname{int}erior\text{ }angle\text{ }=\text{ }opp.exterior\text{ }angle\} \\\end{align}$
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