Module 17: Geometry of 2D Shapes

Type of triangle:	Sketch:	Description:
Right-angled triangle		One angle is equal to 90°
Acute-angled triangle		All the angles are acute angles.
Obtuse-angled triangle		One of the angles is an obtuse angle.
Isosceles triangle		Two of the sides are equal in length.
Equilateral triangle		All three sides are equal in length.
Scalene triangle		All three sides are different lengths.

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