Exploring Triangle Properties
A Grade 4 math worksheet focusing on identifying and classifying triangles based on their sides and angles.
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Exploring Triangle Properties
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Read each question carefully and answer to the best of your ability. Show your work where necessary.
1. Which type of triangle has all three sides of different lengths?
Equilateral triangle
Isosceles triangle
Scalene triangle
Right triangle
2. A triangle with one angle greater than 90 degrees is called a(n) triangle.
Acute
Obtuse
Right
Straight
3. An equilateral triangle has all three sides of length.
4. A triangle with two sides of equal length is called an triangle.
5. Look at the triangle below. Is it an acute, obtuse, or right triangle? Explain your answer.
6. Draw a right-angled triangle in the space below. Label the right angle.
7. All triangles have three angles that add up to exactly 180 degrees.
True
False
8. An isosceles triangle can also be an equilateral triangle.
True
False