Grade 8 Triangle Properties Worksheet
This worksheet covers fundamental properties of triangles, including angle sums, types of triangles, and the Pythagorean theorem, suitable for Grade 8 math students.
Includes
Standards
Topics
Grade 8 Triangle Properties
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Date:
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Read each question carefully and answer to the best of your ability. Show all your work where necessary.
1. What is the sum of the interior angles of any triangle?
90 degrees
180 degrees
270 degrees
360 degrees
2. A triangle with all three sides of different lengths is called a:
Equilateral triangle
Isosceles triangle
Scalene triangle
Right triangle
3. The longest side of a right-angled triangle is called the .
4. An triangle has two sides of equal length.
5. A triangle can have two obtuse angles.
True
False
6. The exterior angle of a triangle is equal to the sum of the two opposite interior angles.
True
False
7. In a triangle, two angles measure 45° and 65°. What is the measure of the third angle?
8. A right-angled triangle has legs of length 6 cm and 8 cm. Calculate the length of its hypotenuse. (Draw a diagram to help you.)
9. A ladder 10 meters long is leaning against a wall. The base of the ladder is 6 meters away from the wall. How high up the wall does the ladder reach? Draw a diagram and show your work.
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