Proving Lines Parallel — Unit test Answers

A line extends from a side of a triangle.

In triangle QRS, QR = 8 and RS = 5. Which expresses all possible lengths of side QS?

Triangle J K L is shown. Lines are drawn from each point to the opposite side and intersect at point P. Line segments J O, K M, and L N are created.

A triangle with exterior angles is shown. The bottom right angle of the triangle is (3 h + 18) degrees. The bottom right exterior angle is (15 h) degrees.

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Triangle B C D is shown. Line D B extends through point A to form exterior angle A B C. Angle B D C is 67 degrees and Angle C D B is 60 degrees.

Point Z is equidistant from the vertices of ΔTUV.

Triangle ABC has the angle measures shown.

Triangle A B C is shown. Lines are drawn from each point to to the opposite side and intersect at point G. Line segments A D, B E, and C F are created.

Lines P S and W T are horizontal and parallel. Lines V R and Q R are diagonal and intersect lines P S and W T to form triangle X Y Z.

The base angle of an isosceles triangle measures 54°. What is the measure of its vertex angle?

Equilateral triangle ABC has a perimeter of 96 millimeters. A perpendicular bisector is drawn from angle A to side at point M.What is the length of ?

Which type of triangle will always have a perpendicular bisector that is also an angle bisector?

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Jace is making a water play table from a triangular table top. He sketched a dotted line to show where he wants to add a circular water bowl. It should go all the way to the edges of the table as shown.