SOLUTION: Here is the question: A trapezoid has an area of 140 square meters. One base is 3 meters long. The height measures 20 meters. What is the length of the other base?
I know that t
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-> SOLUTION: Here is the question: A trapezoid has an area of 140 square meters. One base is 3 meters long. The height measures 20 meters. What is the length of the other base?
I know that t
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Question 963915: Here is the question: A trapezoid has an area of 140 square meters. One base is 3 meters long. The height measures 20 meters. What is the length of the other base?
I know that the area of a trapazoid is A = 1/2*h(b1+b2) so here's what I have gotten so far:
140 = 1/2*20(3+b)
140 = 10(3 +b)
I have no idea what to do next. I've tried multiplying the ten and the three but I get a crazy long decimal that I know isn't the answer. I've tried subtracting the ten from the 140 but that doesn't work either. Please help? Found 2 solutions by MathLover1, MathTherapy:Answer by MathLover1(20850) (Show Source):
You can put this solution on YOUR website! Here is the question: A trapezoid has an area of 140 square meters. One base is 3 meters long. The height measures 20 meters. What is the length of the other base?
I know that the area of a trapazoid is A = 1/2*h(b1+b2) so here's what I have gotten so far:
140 = 1/2*20(3+b)
140 = 10(3 +b)
I have no idea what to do next. I've tried multiplying the ten and the three but I get a crazy long decimal that I know isn't the answer. I've tried subtracting the ten from the 140 but that doesn't work either. Please help?
140 = 10(3 + b)
10(14) = 10(3 + b) ------- Factor left side using a factor of 10
14 = 3 + b
14 - 3 = b________
