two parallel sides of an isosceles trapezium are 31 cm and 15 cm . it's non parallel sides are each equal to 17 cm. find the area of the trapezium
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Answer:
parallel sides=31cm and 15 cm
non parallel side=17 cm
area=1/2×(31+15)×17 cm
=23×17 cm
=319cmsq.
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