8.G.A.5 Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.
8.G.A.5 Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.
Test Practice
Given two triangles are similar, find the measurement of a corresponding angle.
Determine the measure of an unknown angle in a figure containing two parallel lines cut by a transversal.
Determine the measures of three angles shown in a diagram consisting of parallel lines intersected by a transversal.
Given two similar triangles, use a proportional relationship to determine an unknown side length.
Determine the measure of an angle in one of a pair of similar triangles.