Vocabulary
Classify Triangles
Classify Quadrilaterals
Relate Quadrilaterals
Always, Sometimes, Never
100
*An angle that is less than a right angle.
*An angle that measures less than 90 degrees.
What is an acute angle?
100
Draw a triangle with two sides that have the same length and name that triangle.
What is an isosceles triangle?
100
A quadrilateral with exactly one pair of parallel sides.
What is a trapezoid?
100
Which statement about a rhombus is NEVER true?
A) It is also a trapezoid.
B) It is also a rectangle.
C) It is also a square.
D) It is also a parallelogram.
A) It is also a trapezoid.
A trapezoid has one pair of parallel sides.
A rhombus ALWAYS has two pairs of parallel sides.
100
A rhombus is ____________________ a square.
always sometimes never
sometimes
200
*An angle that forms a straight line.
*An angle that measures 180 degrees.
What is a straight angle?
200
What is the name of a triangle with all three sides the same length?
An equilateral triangle.
200
A quadrilateral with four sides that have the same length.
What is a rhombus?
OR
What is a square?
200
All rectangles have two pairs of parallel sides.
True or False?
True; Rectangles have two pairs of parallel sides.
200
A parallelogram is ___________________ a quadrilateral.
always sometimes never
always
300
A quadrilateral that has exactly one pair of parallel sides.
What is a trapezoid?
300
What is the name of a triangle with one 90 degree angle?
A right triangle.
300
This quadrilateral has for equal sides, four right angles, and 2 pairs of parallel sides.
What is a square?
300
Some parallelograms are trapezoids.
True or False?
False; Parallelograms have two pairs of parallel sides.
300
A trapezoid is __________________ a rectangle.
always sometimes never
never
400
A parallelogram that has four right angles.
What is a rectangle?
OR
What is a square?
400
Which statement is true?
A) A scalene triangle can be right, acute, or obtuse, so obtuse triangles are always scalene.
B) Right triangles have two acute angles, so acute triangles are always right.
C) Isosceles triangles have at least two sides the same length, so equilateral triangles are always isosceles.
D) Equilateral triangles have all acute angles, so acute triangles are always equilateral.
C) Isosceles triangles have at least two sides the same length, so equilateral triangles are always isosceles.
400
Look at the shape below.
Which is a correct classification for this shape from LEAST specific to MOST specific?
A) polygon, quadrilateral, rectangle
B) quadrilateral, parallelogram, square
C) polygon, quadrilateral, square
D) quadrilateral, rectangle, square
A) polygon, quadrilateral, rectangle
This figure is not a square because it does not have 4 equal sides.
400
Connor built a square sandbox for his cousin. Which pair of terms can also be used to describe the shape of the sandbox?
A) parallelogram and pentagon
B) triangle and quadrilateral
C) quadrilateral and rhombus
D) trapezoid and rectangle
C) quadrilateral and rhombus
A square is a rhombus.
A square is a quadrilateral.
400
An equilateral triangle is ___________ an acute triangle.
sometimes always never
always
500
A triangle that has no sides with the same length.
What is a scalene triangle?
500
What is the name of a triangle who has the following angle degrees: 35 degrees, 110 degrees, 35 degrees
Points should only be given if you provide the first, middle, and last name.
What is an obtuse isosceles triangle?
500
Which THREE statements about quadrilaterals are true?
A) All squares are rectangles, so all squares have four right angles.
B) All rhombuses are squares, so all rhombuses have four equal sides.
C) All rectangles are rhombuses, so all rectangles have four equal sides.
D) All squares are parallelograms, so all squares have two pairs of parallel sides.
E) All rectangles are squares, so all rectangles have sides that are perpendicular.
F) All rhombuses are parallelograms, so all rhombuses have opposite angles with the same measure.
A, D, F
500
Which statement is true?
A) All parallelograms are squares.
B) All parallelograms are rhombuses.
C) All rectangles are squares.
D) All squares are rhombuses.
D) All squares are rhombuses.
All squares are rhombuses, but not all rhombuses are squares because a square must have 4 right angles.
500
An obtuse triangle is _________ an acute triangle.
sometimes always never
never
