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Mathematics 8 Online
OpenStudy (anonymous):

Anyone willing to help me with Geometry?

OpenStudy (anonymous):

|dw:1332402200406:dw|

OpenStudy (inkyvoyd):

y=12

OpenStudy (inkyvoyd):

Wait no.

OpenStudy (anonymous):

Yeah...

OpenStudy (inkyvoyd):

That question sucks because you forgot a right angle, and you didn't label the points.

OpenStudy (anonymous):

I put all that's in the image on the test...

OpenStudy (inkyvoyd):

Well, there is no answer then.

OpenStudy (anonymous):

you don't need it. the congruent side proves this quadrilateral is a kite and it's diagonals are always perpendicular 1 of them is always bisected.

OpenStudy (anonymous):

it is 12.

OpenStudy (inkyvoyd):

Sorry, he's right.

OpenStudy (inkyvoyd):

x is 13

OpenStudy (callisto):

and use pyth thm to find x

OpenStudy (callisto):

\[x^2 = 5^2 + 12^2\]

OpenStudy (inkyvoyd):

Forever ninja'd for being too detailed.

OpenStudy (anonymous):

How did you get that x is 13? O.o

OpenStudy (inkyvoyd):

What Callisto said.

OpenStudy (inkyvoyd):

Future reference that will give you much credit: Right angle and side length=pythagorean theorem. ALWAYS. If they give you a right angle, and a side length, you use pythagorean theorem.

OpenStudy (callisto):

well.. not a side length, but 2 sides

OpenStudy (inkyvoyd):

No, because as soon as they give you one side length, they give you other info that can be used to find another side, or represent two sides algebraically, and then you have an answer.

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