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Triangle - Coggle Diagram
Triangle
Types of triangle on the basis of no. of equal sides
Equilateral triangle
Triangle whose all three sides are equal
Scalene
In this triangle no sides are equal
Isoceles
Triangle whose two sides are equal
Triangles on the basis of angles in them
Acute angled triangle
Triangle whose all of the angle is less than 90°
Right angled
Triangle whose one of the angle is equal to 90
°
Obtuse angled triangle
Triangle whose all of the angle is greater than 90° but less than 180°
Properties
Interior angle sum = 180
exterior angle= sum of opposite interior angles
Pythagoras theorem
a2 + b2 = c2 , where a and b are two sides of the triangle and c is the hypoteneuse.