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Definitions of shapes and angles
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Equilateral Triangle
An equilateral triangle has 3 equal sides and 3 equal angles.
Isosceles triangle
An isosceles triangle has 2 equally long sides that meet at a vertex.
Rectangular Prism
A rectangular prism has four equal sides and all the sides parallel with a side are the same.
Right Triangle
A right triangle has 3 sides and 1 angle that is exactly 90 degrees.
Cone
A cone has 1 circular face and 1 vertex.
Right Angle
In order to be a right angle the angle has to be exactly 90 degrees.
Acute Angle
An acute angle doesn’t have to be any specific angle it just has to be below 90 degrees.
Obtuse Angle
Like an acute angle an obtuse angle doesn’t have to be any specific angle it just have to be above 90 degrees.
