Question

2. The area of a trapezium of height 7 cm is 140 cm. If one of the parallel sides is 25 cm,
find the other side.
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Answer 1

Answer:

Area of Trapezium =

$\frac{a + b}{2} h$=> 140cm

$\frac{25 + b}{2} 7 = 140$

$\frac{b}{2} = \frac{140}{7} - 25$

$b = \frac{ - 5}{2} = - 2.5cm$