Angles
Triangles
Quadrilaterals
Vocabulary
BONUS
100
An angle measuring exactly 90 degrees.
What is a right angle?
100
A triangle with three congruent sides.
What is an equilateral triangle?
100
A quadrilateral with four right angles and four congruent sides.
What is a square?
100
A word meaning equal.
What is congruent?
100
Two lines that will never cross (like train tracks).
What are parallel lines?
200
An angle measuring less than 90 degrees.
What is an acute angle?
200
A triangle with no equal sides or angles.
What is a scalene triangle?
200
A quadrilateral with four right angles and two pairs of congruent sides.
What is a rectangle?
200
The name for a shape with three sides.
What is a triangle?
200
The names of three types of angles.
What are right, acute, and obtuse?
300
An angle measuring greater than 90 degrees.
What is an obtuse angle?
300
A triangle with two equal sides and angles.
What is an isosceles triangle?
300
A quadrilateral with four congruent sides and congruent opposite angles.
What is a rhombus?
300
The name for a shape with four sides.
What is a quadrilateral?
300
The names of three types of triangles.
What are equilateral, scalene, and isosceles?
400
The total measure of all the angles in a triangle.
What is 180 degrees?
400
The angle measures of an equilateral triangle.
What is 60 degrees?
400
A quadrilateral with one pair of parallel sides.
What is a trapezoid?
400
The name for the type of polygon with congruent sides.
What is a regular polygon?
400
The names of five types of quadrilaterals.
What are square, rectangle, rhombus, parallelogram, and trapezoid?
500
The total measure of all the angles in a quadrilateral.
What is 360 degrees?
500
The possible angle measures of an isosceles triangle.
What is 90, 45, and 45 degrees?
500
A quadrilateral with congruent opposite sides and congruent opposite angles.
What is a parallelogram?
500
Another word for the angle or corner of a polygon.
What is a vertex?
500
The names of three other types of quadrilaterals that a square can be considered.
What are a rectangle, a rhombus, and a parallelogram?
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