BASICS OF TRIANGLES
What is a triangle?
Properties of a triangle?
Types of triangles?
Classification of a triangle by internal angles?
Classification of triangles by length of sides?
Special cases of Right Angle Triangles?
The formula for Area of Triangle?
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Answer:
According to internal angles, there are three types of triangles i.e., acute, right, and obtuse-angled triangle. According to length of sides, triangles can be classified into 3 categories i.e., Scalene, Isosceles, and Equilateral triangle.
Step-by-step explanation:
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(important thing to remember
the "Pythagorean theorem"
i.e the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.
AC²= AB²+BC²)