November 24, 2015

Homework Help: Geometry

Posted by Anna-Marie on Monday, March 3, 2008 at 10:30pm.

1. The sides of a triangle have lenghts x, x+4, and 20. Specify those values of x for which the triangle is acute with the longest side 20.

2. use the information to decide if triangle ABC is acute, right, or obtuse.

AC=13, BC= sq. rt. 34, CD=3

>>i know this is obtuse but why?

3. If x and y are positive numbers with x>y, show that a triangle with sides of lenghts 2xy, x^2 - y^2, and x^2 + y^2 is always a right triangle.

I HATE WORD PROBLEMS!! Thanks for helping =]

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