use informal arguments to establish facts about the angle sum and exterior angle of triangles, the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles
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Q 1/2
Score 0
In each diagram, line p is parallel to line f, and line t intersects lines p and f. Based on these diagrams, which statement is true?
60
The value of x should be 105, because the measures of the angles shown in the diagrams add up to 180°.
The value of x should be 75, because the angles shown in the diagrams are congruent.
The value of x should be 140, because the measures of the angles shown in the diagrams should add up to 360° and 360 − (110 + 110) = 140.
The value of x should be 70, because the measures of the angles shown in the diagrams are both 70°.
Q 2/2
Score 0
Four triangles are shown. Based on these triangles, which statement is true?
60
w = 105°, because 180 -(45 + 60) = 75 and 180 -75 = 105
w = 75°, because 45 + 60 = 105 and 180 -105 = 75
w = 165°, because 180 - 60 = 120 and 120 + 45 = 165
w = 285°, because 45 + 60 = 105 and 105 + 180 = 285
2 questions
Q.
In each diagram, line p is parallel to line f, and line t intersects lines p and f. Based on these diagrams, which statement is true?
1
60 sec
8.8.D: Expressions, Equations and Relationships
Q.
Four triangles are shown. Based on these triangles, which statement is true?
