Ask your own question, for FREE!
Mathematics 15 Online
OpenStudy (anonymous):

PLEASE HELP ME URGENT Find the perimeter of a quadrilateral with vertices at R (-2, 1), S (-5, 5), T (2, 5), U (5, 1). Round your answer to the nearest hundredth when necessary. (5 points) 22 units 24 units 28 units 36 units

OpenStudy (danjs):

Plot the points, it will be easier to see

OpenStudy (danjs):

(-2,1) to (5,1) for example is 7 units for that one side

OpenStudy (anonymous):

this is what i got when I plotted it.

OpenStudy (danjs):

ok, so the top and bottom are horizontal, you can add those up by counting the distances. For the slanted sides, you need to use the pythagorean theorem, with the slant as the hypotenuse of a triangle.

OpenStudy (danjs):

|dw:1421893155527:dw|

OpenStudy (anonymous):

so 5 would be the other length?

OpenStudy (danjs):

yep, 3-4-5 triangle the other slant side will be the same

OpenStudy (anonymous):

and the final answer would then be 24..correct?

OpenStudy (danjs):

correct

OpenStudy (anonymous):

Thank you so so much!!

jimthompson5910 (jim_thompson5910):

alyssamaarie, it looks like you used geogebra. If so, then you can use that program to help you compute distances and segment lengths to get the perimeter.

OpenStudy (anonymous):

the answer is 24!

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!