# Math

posted by .

Patricia's teacher asked her to find the perimeter of the school's rectangular parking lot. After school, patricia walks along the short side of the lot and finds it is 50 yards long. She then walks diagonally from one corner of the rectangle to the other and throught the exit to go home. She finds that the distance of the diagonal is 130 yards. Patricia decides that this is enough information to determine the perimeter of the track. Based on her information, what is the perimeter of the parking lot?

so I did 50^2 + b^2 = 130^2

2500+b^2=16,900
b^2=14,400
b=120

so the choices are:

a. 100 yards
b. 110 yards
c. 120 yards
d. 180 yards

But I get for the perimeter
50+50+120+120=340
what am I doing wrong?

• Math -

If the question is as you typed it, there is nothing that you did wrong.
I recognized your dimensions as multiples of 10 of the basic 5,12, 13 right-angled triangle.

It wouldn't be the first time that a textbook has wrong answers.

## Similar Questions

1. ### math

a rectangular parking lot is 110 yards long and 45 yard wide it costs about \$.60 to pave each square foot of the parking lot with asphalt.about how much will it cost to pave the parking lot?
2. ### Algebra

The length of a rectangular parking lot is 4 times its width w. The perimeter of the parking lot is 450 feet. Write an equation for the perimeter. Thanks. (:
3. ### Calculus

a college is planning to construct a new parking lot. the parking lot must be rectangular and enclose 6000 square meters of land. A fence will surround the parking lot, and another fence parallel to one of the sides will divide the …
4. ### Calculus

a college is planning to construct a new parking lot. the parking lot must be rectangular and enclose 6000 square meters of land. A fence will surround the parking lot, and another fence parallel to one of the sides will divide the …
5. ### math

a rectangular parking lot has a length that is 10 yards greater than the width. the area of the parking lot is 200 square yards.find the length and the width
6. ### math

A rectangular parking lot is to be constructed on land bordered on one side by an alley. There is 360 ft of fencing to use along the other three sides. What should be the dimensions of the lot if the enclosed area is to be maximum?
7. ### math

melissa walks 1 and a half miles to school. After school she walks 7 eights of a mile to the park. how many more miles does she walk to school?
8. ### calculus word prob

Two buildings at opposite corners of a parking lot need to be connected by cable that will be buried under ground. It costs \$11/ft to lay accross parking lot and \$8/ft to lay along the sides. The lot is 300ft by 360 ft rect from pt …
9. ### geometry

there is a rectangular parking lot with a length of 2x and a width of x what is the ratio of the perimeter of the parking lot to the parking lot, in terms of x?
10. ### Statistics

One last one. A poll at Steve's high school was taken to see if students are in favor of spending class money to expand the junior-senior parking lot. Steve surveyed 6 random students from the population. 85% favored the expansion, …

More Similar Questions