SOLUTION: Given isosceles trapezoid TRHY, in units what is the length of b2 if the height is 13 units, b1 is 21 units, and the area is 215 units squared?

Question 887327: Given isosceles trapezoid TRHY, in units what is the length of b2 if the height is 13 units, b1 is 21 units, and the area is 215 units squared?
Answer by algebrapro18(249) (Show Source): You can put this solution on YOUR website!
We will use the following formula to solve this problem:

We know the area is 215 units squared, base 1 is 21 units, and the height is 13 units so we can plug those into the formula and solve for b2.

plug in what we know
distribute the 13
multiply both sides by 2
subtract 273 from both sides
divide both sides by 13

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