Shapes
A polygon with 3 sides
Triangle
An angle that measures 90 degrees
A right angle
Goes on forever in both directions, infinite.
A line
What is the distance around a shape?
Perimeter
A shape that can be folded into two equal halves has this
Symmetry
A shape with 4 right angles and opposite sides are parallel and congruent
An angle less than 90 degrees
An acute angle
A part of a line with two endpoints
Line segment
What is the space inside a shape?
Area
The line that divides a shape into two matching halves
Line of symmetry
A polygon with 5 sides
Pentagon
An angle greater than 90 degrees
An obtuse angle
Lines that never meet
Parallel Lines
Find the perimeter in feet: 5+5+5+5
20ft
True
A quadrilateral with only one pair of parallel sides
A trapezoid
The point where two rays meet
Vertex
Lines that meet to form right angles
Perpendicular Lines
A rectangle has a length of 6 inches and a width of 4 inches. Find the area
Name all the shapes from the list that always have 4 right angles: square, rhombus, rectangle, trapezoid
Square and rectangle
A rhombus
An angle that measures exactly 180 degrees
A straight angle
A figure with one endpoint that extends forever in one direction
A ray
A rectangle has a length of 8in and a width of 3in. Find the perimeter.
22 inches.
A four sided shape where both pairs of opposite sides are parallel and congruent
Parallelogram