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Back to Tutor Intake Assessment: Use informal arguments to establish facts about angles and similarity of triangles

8.G.A.5 Tutor Intake -- Angle Relationships and AA Similarity

This short check helps your tutor see where to start. Work on your own,
without a calculator or protractor. Do your best -- the goal is to find
what to work on together, not to grade you.

Grade 8·6 problems·~8 min·Common Core Math - Grade 8·container·8-g-a-5
Work through problems with immediate feedback
A

Concepts

1

Two lines are crossed by a transversal. The alternate interior
angles are 70 degrees and 75 degrees (not equal). What can you
conclude?

2

What does the Angle-Angle (AA) criterion state?

B

Procedures

1

Two parallel lines are cut by a transversal, creating eight
angles. Angle 3 and angle 6 are on OPPOSITE sides of the
transversal, between the two parallel lines. What is this angle
pair called?

2

In triangle PQR, angle P = 38 degrees and angle Q = 74 degrees.
What is angle R, in degrees? Enter a number.

3

In a triangle, angle X = 45 degrees and angle Y = 80 degrees.
Side YZ is extended past Z to form an exterior angle at Z. What
is the measure of the exterior angle, in degrees? Enter a number.

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