Triangle Classification Worksheet
A Grade 7 math worksheet focusing on classifying triangles by their sides and angles, including various question types to reinforce understanding.
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Triangle Classification Worksheet
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Read each question carefully and classify the triangles based on their side lengths and angle measures. Show your work where applicable.
1. A triangle with all three sides of different lengths is called a:
Equilateral triangle
Isosceles triangle
Scalene triangle
Right triangle
2. Which type of triangle has one angle greater than 90 degrees?
Acute triangle
Obtuse triangle
Right triangle
Equiangular triangle
3. An triangle has all three angles equal to 60 degrees.
4. A triangle with two sides of equal length is called an triangle.
5. A right triangle can also be an obtuse triangle.
True
False
6. An equilateral triangle is always an acute triangle.
True
False
7. Draw an example of an isosceles right triangle and label its equal sides and the right angle.
8. A triangle has angle measures of 30°, 60°, and 90°. Classify this triangle by its angles and by its sides.
Match each triangle description with its classification.
9. All three sides are equal.
a. Obtuse
10. One angle is 110°.
b. Equilateral
11. All angles are less than 90°.
c. Acute