Posted by **monique** on Monday, March 26, 2012 at 3:48pm.

Which of the following can be used to describe the triangle with the vertices listed below?

F(-1, 2), G(-10, 2), H(-12, -11)

I. acute

II. obtuse

III. right

IV. scalene

V. isosceles

VI. equilateral

--------Please help!!! Explain.

- Geometry -
**Steve**, Monday, March 26, 2012 at 4:07pm
F and G lie on the same horizontal line.

H lies a bit to the left of G, and well below it.

That makes angle FGH obtuse.

If only one answer may be chosen, then (II)

FG=9

FH=17.02

GH=13.15

So, (IV) is also true

- Geometry -
**Reiny**, Monday, March 26, 2012 at 7:06pm
I had answered that same question for you yesterday.

http://www.jiskha.com/display.cgi?id=1332712679

Please check back to see if your question has been answered before posting it again.

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