A polygon with four sides.
Quadrilateral
An angle that has a measure less than a right angle.
Acute angle
A triangle with no congruent sides.
What is a scalene triangle?
I have 2 pairs of parallel sides, 4 right angles, and opposite sides that are equal. What am I?
rectangle
Lines that cross.
intersecting lines
Name all of the parallelograms that have two pairs of parallel sides.
Square, rectangle, rhombus
Next to or adjoining something else.
What is adjacent?
A triangle that has a 90-degree angle.
right triangle
Name all of the quadrilaterals that have four equal sides.
rhombuses and squares
line segment
True or False? A rhombus is sometimes a rectangle.
False
Which could be the name of a quadrilateral that has four equal sides with opposite equal acute and obtuse angles?
What is a rhombus?
A triangle with two acute angles and one obtuse angle
Obtuse triangle
I have only one pair of parallel sides and no right angles. What am I?
trapezoid
Lines that never cross and are always the same distance apart.
parallel lines
What is the difference between a square and a rhombus?
Square has all right angles
Rhombus has acute and obtuse angles
An angle that has a measure greater than a right angle.
What is an obtuse angle?
A triangle that has 3 acute angles
Acute triangle
I have opposite sides only that are equal, 2 acute angles, 2 obtuse angles. What am I?
parallelogram
A straight path extending in both directions with no endpoints.
line
What are the attributes of a trapezoid?
1 pair of parallel sides
1 pair of equal sides
2 acute angles, 2 obtuse angles
An angle that forms a square corner.
What is a right angle?
A triangle that has 3 equal sides
Equilateral triangle
I have only 90 degree angles and all sides are equal. What am I?
square
Two lines that intersect to form right angles.
perpendicular lines