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Fourth Grade (Grade 4) Triangles Questions

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Grade 4 Triangles
Which describes the triangle?
Scalene Triangle v1
  1. Right
  2. Acute
  3. Obtuse
Grade 4 Triangles
Name the triangle.
Equilateral Triangle v1
  1. Equilateral
  2. Right
  3. Scalene
Grade 4 Triangles CCSS: 4.G.A.2
What kind of triangle is shown?
Right Triangle v2
  1. right
  2. equilateral
  3. isosceles
  4. obtuse
Grade 4 Triangles CCSS: 4.G.A.2
Name the triangle.
Right Triangle v1
  1. Equilateral
  2. Right
  3. Scalene
Grade 4 Triangles
Which of the following best describes how triangles are classified?
  1. overall size and side length
  2. side length and angle measure
  3. number of sides and overall size
  4. angle measure and number of sides
Grade 4 Triangles CCSS: 4.G.A.2
What kind of triangle is shown?
Isosceles Triangle v1
  1. right
  2. equilateral
  3. isosceles
  4. scalene
Grade 4 Triangles CCSS: 4.G.A.2
A right triangle is a triangle that has one 90 degree angle.
  1. True
  2. False
Grade 4 Triangles CCSS: 4.G.A.2
A right triangle is a triangle having all three sides of equal length.
  1. True
  2. False
Grade 4 Triangles CCSS: 4.G.A.2
All triangles have 3 sides and right angles.
  1. True
  2. False
Grade 4 Triangles
An                   obtuse triangle                  is a triangle with one angle greater than 90 degrees.
Grade 4 Triangles CCSS: 4.G.A.2
What is this triangle called? Why?
Right Triangle ABC v3
Grade 4 Triangles CCSS: 4.G.A.2
What kind of triangle is this? Why?
Right Triangle v2
Grade 4 Triangles
Draw and label each of the following: scalene, equilateral, and right triangle.
Grade 4 Triangles CCSS: 4.G.A.2
The angle measures of a triangle are [math]30deg, 60deg, 90deg[/math]. Which of the following best classifies the triangle?
  1. Acute
  2. Obtuse
  3. Right
Grade 4 Triangles CCSS: 4.G.A.2
A right triangle will have one        right         angle.
Grade 4 Triangles
Fill in the correct geometric term.

Geometric Terms: right triangle, equilateral triangle, scalene triangle, obtuse triangle, isosceles triangle, acute triangle


An                      has 3 equal sides.
Grade 4 Triangles CCSS: 4.G.A.2
What kind of triangle is shown?
Right Triangle v2
  1. Acute
  2. Obtuse
  3. Right
Grade 4 Triangles
If I have a right triangle, and one angle is 50 degrees and the second is 40 degrees, then the measure of angle three is              90 degrees             .
Grade 4 Triangles CCSS: 4.G.A.2
Lee drew the triangle shown below. What kind of triangle did Lee draw?
Right Triangle v2
  1. Isosceles
  2. Right
  3. Obtuse
  4. Equilateral
Grade 4 Triangles
How many acute angles can an isosceles triangle have?
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