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6. 2D Geometry
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United States of AmericaVirginia
Grade 8

6.01 Angle relationships

Lesson
Practice
Adaptive
Worksheet

Interactive practice questions

Which of these diagrams shows a pair of adjacent angles?

Four points are connected by lines to a central node. The segments formed by two of these points create an angle shaded in blue, while the segments formed by the other two points also create an angle, which is shaded in yellow.

A

Three points connected by line segments converging at a central node, extending in different directions. The middle segment, in conjunction with the outer segments, forms a V shape, creating two distinct angles at the junction where the segments meet. These angles are shaded for emphasis: one in yellow and the other in violet to indicate their difference.

B

Four points are connected by lines to a central node. The segments formed by two of these points create an angle shaded in green, while the segments formed by the other two points also create an angle, which is shaded in yellow.

C

Two intersecting lines creating congruent angles, highlighted by identical arc shading.

D
Easy
< 1min

Which of these diagrams shows a pair of vertical angles?

Easy
< 1min

Which of these diagrams shows a pair of complementary angles?

Easy
< 1min

Which of these diagrams shows a pair of supplementary angles?

Easy
< 1min
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Outcomes

8.MG.1

The student will use the relationships among pairs of angles that are vertical angles, adjacent angles, supplementary angles, and complementary angles to determine the measure of unknown angles.

8.MG.1a

Identify and describe the relationship between pairs of angles that are vertical, adjacent, supplementary, and complementary.

8.MG.1b

Use the relationships among supplementary, complementary, vertical, and adjacent angles to solve problems, including those in context, involving the measure of unknown angles.

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