Given: StartFraction A D Over D C EndFraction = StartFraction B E Over E C EndFraction Prove: Line segment A B is parallel to line D E Triangle A C B is cut by line D E. Line D E goes through sides A C and B C. Angle A B C is 1, angle D E C is 2, and angle D C E is 3. Complete the steps of the proof.

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

For the inequality |c| < |d| to be true, which of the following must be true?

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.