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Right Angled Triangles

A right angled triangle can be defined as, yes you guessed it, a triangle which has a right angle in it.

There are two types of right angled triangle:

  • An isosceles right angled triangle
  • A scalene right angled triangle

Remember the little square in the triangle tells us that it is a right angled triangle.

 

Isosceles right angled triangle Isosceles right angled triangle

One right angle
Two equal sides
Two other equal angles always of 45°

right angled scalene triangle Scalene right angled triangle

One right angle
No equal sides
Two other unequal angles


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