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Properties of Triangles

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Properties of Triangles

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About this activity

This quiz is based on the fundamental properties of triangles. Test your knowledge about angle sums, types of triangles, and key formulas. Reference: Asif, M. (2019). Properties of triangles – Important formulas and classification.

Created by

José Gonzalez Romero
José Gonzalez Romero
Colombia

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Properties of Triangles
 

Properties of TrianglesOnline version

This quiz is based on the fundamental properties of triangles. Test your knowledge about angle sums, types of triangles, and key formulas. Reference: Asif, M. (2019). Properties of triangles – Important formulas and classification.

by José Gonzalez Romero
1

What is the sum of the interior angles of any triangle?

2

In a right triangle, the two non-right angles always:

3

What is the name of the longest side in a right triangle?

4

In an equilateral triangle, all interior angles measure:

5

The formula for the area of a triangle is:

Feedback

The angle sum property states that the interior angles of any triangle always add up to 180°, regardless of its type.

Since one angle is already 90°, the remaining two angles must sum to 90° to complete the 180° total.

The hypotenuse is always the side opposite the right angle and is the longest side of a right triangle.

In an equilateral triangle all three sides and all three angles are equal, so each angle measures 180° ÷ 3 = 60°.

The standard area formula for any triangle is ½ × base × height, where the height must be perpendicular to the base.

 
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