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Algebra 22 Online
OpenStudy (anonymous):

What is the perimeter of trapezoid (-4,3) (-2,6) (1,6) (3,3)? Round your answer to the nearest tenth. A. 20.0 units B. 17.2 units C. 16.5 units D. 10.5 units

OpenStudy (anonymous):

Do you know the formula for the distance between two points?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

found the distances between the given points and sum it up

OpenStudy (sidsiddhartha):

20.3

OpenStudy (anonymous):

\[d_{AB}=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}\]

OpenStudy (anonymous):

use the above formula to find the distances ...

OpenStudy (anonymous):

\[\sqrt{(y_{2}-y _{1})^{2}+(x_{2}-x _{1})^{2}}\] You might recognise Pygthagorus' Theorem in here. But it doesn't matter whether you do or not. I see someone has given you an answer already. If that's all you want please let us know.

OpenStudy (anonymous):

k thx

OpenStudy (anonymous):

thanks for the formula

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