How Do I Find The Base Of A Trapezoid?
I have b1 and the area. I need a clear understanding of how to work the problem.
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This formula should help
A = 1/2 × h × (a + b)
A= area
h= height
a= length of top
b= length of bottom
ok well now you have given me enough to work with ( i didn't know the height)
this is how your problem looks
A=44.25
h=5.9
a=6.7
now just plug those numbers into the equation
44.25=1/2*5.9*(6.7+b)
88.5= 5.9*(6.7+b) divide by 1/2
15= 6.7+b divide by 5.9
b=8.3
I know that answer is different than what the book says but that is the correct answer for the numbers you gave.
A = 1/2 × h × (a + b)
A= area
h= height
a= length of top
b= length of bottom
ok well now you have given me enough to work with ( i didn't know the height)
this is how your problem looks
A=44.25
h=5.9
a=6.7
now just plug those numbers into the equation
44.25=1/2*5.9*(6.7+b)
88.5= 5.9*(6.7+b) divide by 1/2
15= 6.7+b divide by 5.9
b=8.3
I know that answer is different than what the book says but that is the correct answer for the numbers you gave.
1
2
I understand that but I do not know the formula to solving the problem. The area of the trapezoid is 44.25. Base 2 is 6.7in and the height is 5.9in. I need to find b1 to solve the problem The answer in the book is 8.5 but I do not know how they got it.
The answer book is wrong more often than you might like. Sometimes I think the answer book represents a test of your self-confidence and understanding.
Take the answer and divide it by 2 then divide it by the height . Then take that answer and subtract it by base 2 and you get the answer
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