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Quadrilateral - 4-sided shape
3-D
Polygon - a closed figure formed by line segments
Triangles
Miscellaneous Vocabulary
100
A quadrilateral that has four right angles and four equal sides.
What is a square?
100
A circular 3-D solid with a volume.
What is sphere?
100
A polygon with five sides.
What is a pentagon?
100
A triangle that has a right angle.
What is a right triangle?
100
Two lines that intersect at a 90 degree angle.
What are perpendicular lines?
200
A quadrilateral the has four angles and has opposite sides of equal length.
What is rectangle?
200
A soild (3-D) object with a circular flat base joined with a curved side that ends in a apex point.
What is cone?
200
A polygon with eight sides.
What is octagon?
200
A triangle with no congruent sides.
What is scalene triangle?
200
A line that separates a figure or object into identical parts.
What is a line of symmetry?
300
A quadrilateral with opposite sides parallel and all sides equal.
What is rhombus?
300
A solid object with two identical flat ends that are circular or elliptical and one curved side. It has the same cross-section from one end to the other.
What is a cylinder?
300
A polygon with nine sides.
What is a nonagon/enneagon?
300
A triangle with at least two congruent sides.
What is isosceles triangle?
300
Lines that cross each other.
What are intersecting lines?
400
A quadrilateral only with only two parallel sides.
What is trapezoid?
400

A box-shaped solid object that has six identical square faces.

What is cube?

400
A polygon with seven sides.
What is a septagon/heptagon?
400
A triangle with three equal sides.
What is equilateral triangle?
400
Two lines in plane that do not cross or intersect.
What are parallel lines?
500
A quadrilateral with opposite sides parallel and equal.
What is parallelogram?
500
A solid object where the base is a polygon (a straight-sided flat shape) and the sides are triangles which meet at the top (the apex). It is a polyhedron.
What is pyramid?
500
A ten-sided polygon (a flat shape with straight sides).
What is decagon?
500

A triangle with one angle larger than 90 degrees?

What is obtuse triangle?

500

When two parts of a figure or entire figures are exactly the same (length or measure)

What a congruent?