Answer:
80
Step-by-step explanation:
area of trapezoid is given by formula
Area = [tex]\frac{a+b}{2}[/tex]h
where a is one base, b is another base and h is height
In given case, we have
a= 7+7+3 = 17
b= 3
h= 8
Substituting the values
Area= [tex]\frac{17+3}{2}[/tex] x 8
= [tex]\frac{20}{2}[/tex] x 8
= 10 x 8
= 80
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