Triangles and its Formulas

Triangles and its Formulas

1. A triangle has three sides and three angles. The three angles always add to 180°.

   • Symbols: a + b + c = 180 ALWAYS

2. After you analyze all my work, first put a little of attention at this

   • A triangle is formed by 3 line segments that intersect only at their endpoints. A line the segment is a part of a line containing two endpoints and all of the points between them. A vertex is a point where the segments of the triangle intersect. And last but not least, the 3 angles that lie inside a triangle, formed by segments and the verticles are called interior angles

3. Now let's talk about the type of angles. Triangles can also have names that tell you what type of angle is inside:

   • Acute Triangle All angles are less than 90°
   • Right Triangle Has a right angle (90°)
   • Obtuse Triangle Has an angle more than 90°

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