Lines
lines that are going in exactly the same direction
parallel lines
a figure formed when two lines or line segments meet
angle
a shape with 4 sides the same and four right angles
square
What is PERIMETER?
How far AROUND?
True or false? A triangle is a quadrilateral.
False. QUAD = FOUR
lines that cross one another
intersecting lines
an angle that makes a square corner and measures 90 degrees
right angle
A shape with two pairs of parallel lines but no right angles
parallelogram (rhombus?)
the distance around the sides of a figure
perimeter
What is a shape with four equal sides and no right angles?
RHOMBUS
lines that will never cross
parallel lines
an angle narrower than a right angle
acute angle
a triangle with three sides and three angles the same
equilateral triangle
What is the perimeter of a square with one side measuring 5 inches?
20 inches
Which shape has two pairs of parallel lines?
Parallelogram, square, rectangle and rhombus.
a line that divides a figure into two matching halves
line of symmetry
an angle that is wider than a right angle
obtuse angle
a shape with two pairs of parallel sides
parallelogram, square, rectangle
What is the perimeter of a rectangle where one long side measures 6 inches and one short side measures 4 inches?
20 inches
True or false? A square is a special type of rectangle.
TRUE!
a line with two end points
line segment
How many right angles does a circle have?
4 (360 degrees)
any two-dimensional shape with FOUR sides
QUADRILATERAL
What is the perimeter of an equilateral triangle if one side measures 5 inches?
15 inches
Name the shape that has a right angle, two parallel sides, and two sides that are not parallel.
Right trapezoid