Question 26

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Jambmaths question: 

A trapezium has two parallel sides of length 5cm and 9cm. If the area is 21cm2. Find the distance between the parallel sides.

Option A: 

3cm

Option B: 

4cm

Option C: 

6cm

Option D: 

7cm

Jamb Maths Solution: 

$\begin{align}  & A=21c{{m}^{2}} \\ & Area=\tfrac{1}{2}(a+b)h \\ & 21c{{m}^{2}}=\tfrac{1}{2}(9+5)h \\ & 21=7h \\ & h=3cm \end{align}$

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