Question on: WAEC Mathematics - 2016
Kweku walked 8m up to slope and was 3m above the ground. If he walks 12m further up the slope, how far above the ground will he be?
A
4.5m
B
6.0m
C
7.5m
D
9.0m
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Correct Option: C
By similar triangles, \(\frac{8}{3}\) = \(\frac{8 + 12}{h}\)
\(\frac{8}{3} = \frac{20}{h}\)
h = \(\frac{3 \times 20}{8}\)
= 7.5m
\(\frac{8}{3} = \frac{20}{h}\)
h = \(\frac{3 \times 20}{8}\)
= 7.5m
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