# Find the area of a trapezium whose parallel sides are 25cm,13cm and the non parallel sides are 15cm each

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Therefore, we draw two lines such that they are form a right angle.

Using pythogotas theorem,

we get (height^2)=(15*15)-(6*6)

height = √225-36

h=√189

h=17cm

Area=1/2*(sum of parallel sides)*height

a=1/2*(25+13)*17

a=323cm²