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# Topic 16

### Math - Geometric Measurements

TermDefinition
Scalene Triangle No congruent sides
Right Triangle One Right Angle
Obtuse Triangle One obtuse angle ( greater than 90 degrees)
Acute Triangle All acute angles ( less than 90 degrees)
Equilateral Triangle All three sides are congruent
Isosceles Triangle At least 2 congruent sides
Parallelogram A quadrilateral. Has 2 pairs of equal parallel sides.
Trapeziod A quadrilateral with only ONE pair of parallel sides.
Rectangle A quadrilateral and a parallelogram with four right angle.
Square A quadrilateral and parallelogram with 4 right angles and 4 equal sides.
Rhombus A quadrilateral and a parallelogram with 4 equal sides.
Pentagon A polygon with 5 sides
Hexagon A polygon with 6 sides
Heptagon A polygon with 7 sides
Octagon A polygon with 8 sides
Nonagon A polygon with 9 sides
Decagon A polygon with 10 sides
Created by: user-1770249
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