what is the greatest number of right angles that a triangle can contain? a: 1 b: 3 c: 2 d: 0

The greatest number of right angles that a triangle can contain is **1**. This is because the sum of the interior angles of any triangle is always 180 degrees, and a right angle is 90 degrees. If a triangle had more than one right angle, the sum of the angles would exceed 180 degrees, which is impossible for a triangle.

Thus, the correct answer is:

**a: 1**

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Here are 5 related questions:
1. What are the sum of the angles in different polygons?
2. Can an equilateral triangle have a right angle?
3. How do you calculate the third angle in a right-angled triangle?
4. Can a triangle have an obtuse and a right angle?
5. What is the difference between acute, obtuse, and right-angled triangles?

**Tip:** In any triangle, the sum of the three interior angles always adds up to 180 degrees.

Discover the solution to how many right angles a triangle can contain. Learn why the greatest number of right angles in a triangle is 1 using the Triangle Angle Sum Theorem. Suitable for Grades 6-8 students.

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