Set 3A

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Terms in this set (...)

Acute Angle
An angle that measures less than 90°
Right Angle
An angle that measures exactly 90°
Obtuse Angle
An angle that measures more than 90° and less than 180°
Straight Angle
An angle that measures exactly 180°
Vertex
A corner or a point where two or more straight lines (or rays) meet.
Equilateral Triangle
A triangle that has 3 equal sides.
Isosceles Triangle
A triangle in which two sides are the same, while the other side is different
Scalene Triangle
A triangle with no equal sides
Acute Triangle
A triangle with 3 acute angles
Obtuse Triangle
A triangle with one obtuse angle.
Right Triangle
A triangle with one right angle.
Perimeter
The distance around a shape.
Polygon
A closed plane figure made up of line segments.