UPSKILL MATH PLUS
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Learn moreA triangle has three sides, three vertices, and three angles. A triangle with vertices \(A\), \(B\), and \(C\) is denoted as \(△ABC\).
Properties of a triangle:
- The sum of the three interior angles of a triangle is always \(180°\).
- The sum of the length of two sides of a triangle is always greater than the length of the third side.
The first property of the triangle: The sum of the three interior angles of a triangle is always \(180°\).
\(∠A\) \(+\) \(∠B\) \(+\) \(∠C\) \(=\) \( 180°\).
The second property of triangle: The sum of the length of two sides of a triangle is always greater than the length of the third side of a triangle.
\(AB + BC > AC\) or \(BC + AC > AB\) or \(AB+ AC > BC\).
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