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Triangles Questions - All Grades

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Grade 8 Triangles
How many degrees are there in a triangle?
  1. 45
  2. 180
  3. 90
  4. 360
Grade 8 Triangles CCSS: 8.G.A.5
The exterior angle of a triangle is equal to
  1. the value of its adjacent angle.
  2. the sum of its opposite interior angles.
  3. the product of its opposite interior angles.
  4. the difference between its opposite interior angles.
Grade 5 Triangles
According to side lengths, this is what kind of triangle?
Scalene Triangle v1
  1. scalene triangle
  2. isosceles triangle
  3. equilateral triangle
Grade 8 Triangles CCSS: 8.G.A.5
The measures of the angles in a right triangle are x, 2x and 90°. What is x?
  1. 15°
  2. 30°
  3. 45°
  4. 60°
Grade 8 Triangles CCSS: 8.G.A.5
What is the sum of the exterior angles of a triangle?
  1. 180°
  2. 270°
  3. 360°
  4. 540°
Grade 8 Triangles CCSS: 8.G.A.5
Which of the following statements about the exterior angle of a triangle is true?
  1. It is always equal to the value of its adjacent angle.
  2. It is always larger than either opposite interior angle.
  3. It is always larger than the sum of its opposite interior angles.
  4. It is always equal to the sum of the interior angles of the triangle.
Grade 5 Triangles CCSS: 5.G.B.4
According to angle measure, this is what kind of triangle?
Right Triangle v3
  1. acute triangle
  2. obtuse triangle
  3. right triangle
Grade 5 Triangles CCSS: 5.G.B.4
According to side lengths, what kind of triangle is ABC?
Equilateral Triangle ABC v2
  1. scalene triangle
  2. equilateral triangle
  3. isosceles triangle
Grade 4 Triangles CCSS: 4.G.A.2
Which describes the triangle?
Scalene Triangle v1
  1. Right
  2. Acute
  3. Obtuse
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