Jambmaths question:
On a pie chart, there are four sector of which three angles are 45o, 90o, and 135o. If the smallest sector represent N28.00. How much is the largest sector.
Option A:
N96.00
Option B:
N84.00
Option C:
N48.00
Option D:
N42.00
Jamb Maths Solution:
$\begin{align} & x+{{45}^{o}}+{{90}^{o}}+{{135}^{o}}={{360}^{o}}\text{ }\!\!\{\!\!\text{ Sum of angles at a point }\!\!\}\!\!\text{ } \\ & x={{360}^{o}}-{{270}^{o}}={{90}^{o}} \\ & {{45}^{o}}\to \to N28 \\ & {{135}^{o}}\text{ will be }\frac{{{135}^{o}}}{{{45}^{o}}}\times N28=N84.00 \\ & \text{The largest sector represents N84}.00. \\\end{align}$
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