ISO trapezoid v2

bases of Isosceles trapezoid measured 16 cm and 4 cm and its perimeter is 47 cm. What is the are of a trapezoid?

Correct result:

S =  178.38 cm2

Solution:

a=16 cm b=4 cm o=47 cm  o=a+b+2c  c=oab2=471642=272=13.5 cm  x=ab2=1642=6 cm  h=c2x2=13.526212.0934 cm  S=a+c2 h=16+13.52 12.0934=178.38 cm2



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