Question 18

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waecmaths question: 

PQRS is a trapezium. $QR\parallel PS,\text{ }\left| QR \right|=6cm,\text{ }\left| PS \right|=10cm\text{ and }\angle QPS={{42}^{\circ }}$

 

 

 

 

Calculate; correct to the nearest cm2 the area of the trapezium

 

 

Option A: 

27cm2

Option B: 

30cm2

Option C: 

36cm2

Option D: 

37cm2

waecmaths solution: 

$\begin{align}  & A=\tfrac{1}{2}(a+b)h=\tfrac{1}{2}(6+10)3.35c{{m}^{2}}=26.8c{{m}^{2}} \\ & A\approx 27cm\text{ (to the nearest c}{{\text{m}}^{2}}) \\\end{align}$

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