Calculate 6339

Calculate the missing side and the area of the ABCD trapezoid if you know:

side a = 7.5
side b = 3.6
side d = 4.4
height v = 3.4
circumference o = 19

c =?
S =?

Correct answer:

c =  3.5
S =  18.7

Step-by-step explanation:

a=7.5 b=3.6 d=4.4 v=3.4 o=19  c=o(a+b+d)=19(7.5+3.6+4.4)=3.5
S=(a+c) v/2=(7.5+3.5) 3.4/2=18.7

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