2. Define the following angles: Acute, Right, and Obtuse. With diagram.
3. a) How will you divide any triangle into four congruent triangles?
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Answers
Answer:
A triangle is composed of three line segments. The line segments intersect in their endpoints. To name a triangle we often use its vertices (the name of the endpoints). The triangle below is named ABC.
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A triangle has three angles. The sum of the measures of the angles is always 180° in a triangle.
We have different types of triangles. A triangle is classified by its angles and by the number of congruent sides.
A triangle that has three acute angels is called an acute triangle.
triangle
A triangle that has one right angle is called a right triangle.
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A triangle that has one obtuse angle is called an obtuse triangle.
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When a triangle has three congruent sides, we call the triangle an equilateral triangle. We mark the congruent sides by a slash mark. The angles in an equilateral triangle are always 60°.
