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Find the area of the figure above 22 7 - JAMB Mathematics 2008 Question

Find the area of the figure above
[π = 22/7]
A
12.5 cm2
B
75.0 cm2
C
78.5 cm2
D
84.8 cm2
correct option: d

Area of the figure = Area of rect + area of semi circle

(=L \times h + \frac{1}{2}\pi r^2\

5 \times 15 + \frac{1}{2} \times \frac{22}{7} \times \left(\frac{5}{2}\right)^2\

=75+\frac{(22\times 25)}{2\times7}\

=75 + 9\frac{23}{28}\

=84.8cm)

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