assignment_returnCourse Name:Lumos StepUp - Smarter Balanced Online Practice And Assessments - Grade 8 Mathematics
assignment_returnWorksheet:
Interior And Exterior Angles In Geometric Figures
assignment_returnWorksheet:
Interior And Exterior Angles In Geometric Figures
Standard(s): 8.G.A.5
If b = 40o and c = 30o, what is the measure of d?
A
35o
B
70o
C
110o
D
145o
Standard: 8.G.A.5
Domain: Geometry
Theme: Understand congruence and similarity using physical models, transparencies, or geometry software
Description: 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. For example, arrange three copies of the same triangle so that the three angles appear to form a line, and give an argument in terms of transversals why this is so.
The figure shows two parallel lines intersected by a third line. Which of the following angles are equal in measure?
A
a and b only
B
a and c only
C
b and c only
D
a, b, and c
Standard: 8.G.A.5
Domain: Geometry
Theme: Understand congruence and similarity using physical models, transparencies, or geometry software
Description: 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. For example, arrange three copies of the same triangle so that the three angles appear to form a line, and give an argument in terms of transversals why this is so.
The figure shows two parallel lines intersected by a third line. If a = 55o, what is the value of b?
A
35o
B
45o
C
55o
D
125o
Standard: 8.G.A.5
Domain: Geometry
Theme: Understand congruence and similarity using physical models, transparencies, or geometry software
Description: 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. For example, arrange three copies of the same triangle so that the three angles appear to form a line, and give an argument in terms of transversals why this is so.
The figure shows two parallel lines intersected by a third line. If b = 60o, what is the value of c?
A
30o
B
60o
C
90o
D
120o
Standard: 8.G.A.5
Domain: Geometry
Theme: Understand congruence and similarity using physical models, transparencies, or geometry software
Description: 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. For example, arrange three copies of the same triangle so that the three angles appear to form a line, and give an argument in terms of transversals why this is so.
If a triangle has one 90o angle, which of the following could be the measures of the other two angles in the triangle?
A
20o and 80o
B
25o and 65o
C
30o and 70o
D
55o and 55o
