Classifying Triangles by Angles (Ex. 3)

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1. Question 1

   Multiple choice

   In an obtuse triangle, how many angles are greater than 90°?

2. Question 2

   Multiple choice

   A triangle has angles 120°, 35°, and 25°. What type of triangle is it by angles?

3. Question 3

   Multiple choice

   Two angles of a triangle are 55° and 35°. What is the third angle?

4. Question 4

   Sequence

   A triangle has angles 50°, 60°, and ___°. All angles must total 180°.

5. Question 5

   True or false

   A right-angled triangle has exactly one angle of 90°.

More exercises in this module

• Plotting Points on a Coordinate Grid (Ex. 2)

• Completing Symmetric Shapes (Ex. 2)

• Classifying Quadrilaterals (Ex. 2)

• Classifying Quadrilaterals (Ex. 1)

• Classifying Triangles by Sides (Ex. 1)

• Classifying Triangles by Angles (Ex. 1)