two parallel side of a trapezium are 60 amd 77 cm and other sides are 25 and 26 cm.find the area of the trapezium.

Draw a line DE parallel to AB and draw a perpendicular DF on CB.

It can be observed that ABED is a parallelogram.

BE = AD = 60 cm

ED = AB = 25 cm

EC = 77 − BE= 17 cm

For ΔDEC,

Semi-perimeter,

By Heron’s formula,

Area of triangle

Area of ΔDEC =

=cm^{2}= 204 cm^{2}

Area of ΔDEC =

Area of the trapezium ==

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