Question

Two parallel sides of an isosceles trapezium are 6 cm and 14 cm respectively if the length of a non parallel side is 5 cm find the area of the trapezium

Answer 1

we know the area of the trapezium=1/2*sum of parallel sides*height
given
         it is isoceles 
         14-6=8cm
          8/2=4cm
           we have one non parallel side that is 5cm
            so h sq=5sq - 4sq
                  h=3cm
so area=1/2*20*3
               =30cmsq

Answer 2

hope it helps !!!! :-) :-)
the answer is 30cm square