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WAEC - Mathematics (1994 - No. 32)
In the diagram, PQRS is a trapezium with PQ||SR. STR is a straight line, PSHQT, PTHQR. If |PQ| = 12cm and the height of the trapezium is 9cm, find its area.
96cm
2
108cm
2
135cm
2
162cm
2
216cm
2
Explication
A =
1
/
2
(A + B)h =
1
/
2
(24 + 12) x 9 = 162
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