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Eighth Grade (Grade 8) Angles Questions

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Grade 8 Angles CCSS: 8.G.A.5
In the figure, if angle 1 is 100°, what is the measure of angle 5?
Parallel Lines - Skew Transversal
  1. 80°
  2. 100°
  3. 110°
  4. 140°
Grade 8 Angles
Find the measure of one angle of the following polygon.
Octagon v2
  1. 135°
  2. 1080°
  3. 1440°
  4. 180°
Grade 8 Angles
Find the measure of one angle of a regular decagon.
  1. 1440°
  2. 144°
  3. 1800°
  4. 900°
Grade 8 Angles
Find the measure of one angle of a regular 20-gon.
  1. 3240°
  2. 3600°
  3. 1800°
  4. 162°
Grade 8 Angles
Find the measure of one angle of a regular dodecagon.
  1. 1800°
  2. 2160°
  3. 150°
  4. 1080°
Grade 8 Angles
In triangle ABC, which is an angle included by AB and AC?
Equilateral Triangle ABC v1
  1. ∠A
  2. ∠B
  3. ∠C
Grade 8 Angles
What is the sum of the measures of the angles in this polygon?
Hexagon
  1. 360 degrees
  2. 540 degrees
  3. 720 degrees
  4. 1,080 degrees
Grade 8 Angles
Angle ABC is congruent to Angle CBD.
Complementary Angle #2
  1. True
  2. False
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