Question

What are the different types of triangles and the formulas for grade 9 math?

Answer 1

Answer:

Types of Triangles

1) Right Triangle

A right triangle has one 90° angle.

2) Equilateral triangle

Equilateral triangle has 3 congruent sides and 3 congruent angles. Each angle is 60°

3) Isosceles Triangle

An isosceles triangle has 2 equal sides and 2 equal angles.

4) Scalene Triangle

Scalene Triangle has no congruent sides

5) Acute Triangle

Acute Triangle has 3 acute angles (measures less than 90°)

6) Obtuse Triangle

Obtuse Triangle has an obtuse angle (more than 90°).

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