Which quadrilateral has 4 right angles and 2 pairs of opposite sides congruent?
Rectangle
How many sides & vertices does a triangle have?
3 sides and 3 vertices
What kind of angle measures exactly 90°?
Right Angle
What is a line of symmetry?
An imaginary line that divides a shape into two identical parts
What tool is used to measure angles?
Protractor
Which polygon has 6 sides and 6 vertices?
Hexagon
What is difference between angle XZY and angle YZW?
29 degrees
Which quadrilateral has exactly one pair of parallel sides?
Trapezoid
1
What kind of angles measure less than 90°?
Acute Angle
Which of these shapes has two lines of symmetry: a square, a rectangle, or a triangle?
Rectangle
What kind of lines will never touch?
Parallel Lines
How many vertices does an octagon have?
8
What is the angle sum of angle PQS and angle SQR?
130 degrees
Which quadrilateral has 4 congruent sides and 4 right angles?
Square
What kind of triangle has a triangle with 3 acute angles?
Acute Triangle
What kind of angle measures more than 90° and less than 180°?
Obtuse Angle
True or False: A circle has infinite lines of symmetry.
True!
What kind of lines intersect to form a right angle?
Perpendicular Lines
Which polygon has 10 sides and 10 angles?
Decagon
How many degrees are in this shape?
180 degrees
Which quadrilateral has 2 pairs of opposite sides parallel and opposite sides congruent?
Parallelogram
What kind of triangle has only one obtuse angle?
Obtuse Triangle
What kind of angle is this?
True or False: A triangle can't have a line of symmetry.
What is a line with one endpoint and goes on in the other direction?
Ray
How many sides does a nonagon have?
9
What is the measure of angle X?
115 degrees
Which quadrilateral has 2 acute angles, 2 obtuse angles, and 4 congruent sides?
Rhombus
What kind of triangle is this?
How many acute, obtuse and right angles does this shape have?
2 acute angles, 1 right angle, 1 obtuse angle
How many lines of symmetry does a square have?
4
What kind of line has 2 endpoints?
Line Segment
Which polygon has perpendicular lines SOMETIMES?
Pentagon
Angle RSU has a measure of 136°. Angle TSU has a measure of 94°. What is the measure of angle RST?
42 degrees