12. The parallel sides of a trapezium are 25 cm
and 13 cm, its non-parallel sides are equal,
each being 10 cm. Find the area of the
trapezium.
13. In the figure, AB and DC are parallel sides
of a trapezium ABCD and ZADC = 90°.
Given AB=15 cm, CD= 40 cm and diagonal
AC=41 cm, calculate the area of trapezium
ABCD.
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Step-by-step explanation:
12)
Area of trapezium =1/2*(sum of length of parallel sides) *height
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