explain theorems on triangle
Answers
Recall that a triangle is a shape with exactly three sides. Triangles can be classified by their sides and by their angles.
When classifying a triangle by its sides, you should look to see if any of the sides are the same length. If no sides are the same length, then it is a scalene triangle. If two sides are the same length, then it is an isosceles triangle. If all three sides are the same length, then it is an equilateral triangle.
When classifying a triangle by its angles, you should look at the size of the angles. If there is a right angle, then it is a right triangle. If the measures of all angles are less than 90∘, then it is an acute triangle. If the measure of one angle is greater than 90∘, then it is an obtuse triangle. Additionally, if all angles of a triangle are the same, the triangle is equiangular.