Mathematics, 18.03.2021 01:10 idcbrooo
The area of the trapezoid shown is 120 square centimeters. Find the sum of the lengths of the two parallel sides.
A. 12 cm
B. 20 cm
C. 24 cm
D. 30 cm
Answers: 3
, where 
is the trapezoid's area, 
and 
are the trapezoid's bases, or parallel sides, and 
is the trapezoid's height. 
, and from the diagram, we see that 
. Therefore, all we have to do to find 
is substitute the given values into the area formula. Therefore:
(Substitute the given values into the equation)
(Simplify RHS)
(Divide both sides of the equation by 
to get rid of 
(Simplify, Symmetric Property of Equality)
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The area of the trapezoid shown is 120 square centimeters. Find the sum of the lengths of the two pa...
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