Question 1206551
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h = distance between parallel streets = height of trapezoid
b1, b2 = parallel sides


b1+b2 = total number of feet along curbside
2(b1+b2) = total cost = $1000
2(b1+b2) = 1000
b1+b2 = 1000/2
b1+b2 = 500


area of trapezoid = 0.5*h*(b1+b2) = 50,000 
0.5*h*(b1+b2) = 50,000 
0.5*h*(500) = 50,000 
250h = 50,000 
h = 50000/250
h = 200



Answer: <font color=red>200 ft</font>
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