Questions and Answers
What does 'poly' mean?
What does 'gons' refer to?
What is a polygon?
A closed plane figure formed from line segments that meet only at their end points.
What does 'quad' refer to?
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What is a quadrilateral?
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What is a rectangle?
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What is a square?
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What is a rhombus?
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What is a parallelogram?
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What does 'congruent' mean?
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What is an acute angle?
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What is a right angle?
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What is an obtuse angle?
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What characterizes an acute triangle?
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What classifies a right triangle?
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What is an obtuse triangle?
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What does 'equiangular' mean?
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What is a scalene triangle?
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What is an isosceles triangle?
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What is an equilateral triangle?
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Study Notes
Basic Terminology
- "Poly" means many, often used in mathematical contexts referring to shapes.
- "Gons" refers to sides, indicating the number of sides in a polygon.
Polygons
- A polygon is defined as a closed plane figure formed by line segments meeting only at their endpoints.
Types of Quadrilaterals
- "Quad" signifies four, a term related to quadrilaterals.
- Quadrilaterals are four-sided polygons with specific properties.
Parallelograms
- A parallelogram features two pairs of parallel and congruent sides.
- A rectangle is a specific type of parallelogram with four right angles and two pairs of congruent sides.
- A square is a special rectangle where all four sides are congruent.
- A rhombus is a parallelogram where all four sides are equal in length.
Angles
- Acute angles measure less than 90 degrees.
- Right angles measure exactly 90 degrees.
- Obtuse angles measure more than 90 degrees.
Triangles
- Acute triangles contain three acute angles, all measuring less than 90 degrees.
- Right triangles have one right angle and two acute angles.
- Obtuse triangles possess one obtuse angle and two acute angles.
- An equiangular triangle has three congruent acute angles.
- Scalene triangles are characterized by having no congruent sides.
- Isosceles triangles have at least two congruent sides.
- Equilateral triangles feature three congruent sides, making all angles equal.
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Description
Test your knowledge of 2D shapes with these flashcards. This quiz covers terms related to polygons, including definitions and characteristics of various shapes. Perfect for students learning geometry!
