Lines
Two lines that are the same distance apart and will never touch are called...
Parallel lines.
This is the term for a 90 degree angle
Right angle
A triangle that has all sides the same length
Equilateral
Name 3 quadrilaterals
Answers will vary (4-sided shapes)
A shape that has 6 sides is called
Hexagon
Lines that intersect to form a right angle are called...
Perpendicular lines.
An angle that is less than 90 degrees is called...
Acute angle
The term to describe 2 triangles that are the same size and shape
Congruent
This is the number of degrees all angles of a quadrilateral will add up to.
360 degrees.
A shape with 5 sides is called
Pentagon
A _________ has one endpoint and continues in one direction forever.
Ray
An angle that is greater than 90 degrees is called...
An obtuse angle.
A triangle with one angle greater than 90 degrees and 2 equal sides (We need an angle and triangle name)
What is obtuse, isosceles triangle?
This is a quadrilateral with two pairs of opposite sides parallel and 4 right angles
What is rectangle.
A right triangle has one angle that is 45 degrees. What is the measure of the 3rd angle?
45 degrees
Part of a line is called...
A line segment.
This is the number of degrees in a straight angle
180 degrees
A triangle with a 90 degree angle and no sides the same length (We need an angle and triangle name)
What is right, scalene
This is a quadrilateral with two pairs of opposite sides parallel and all sides the same length. (It does not have to have right angles)
A Rhombus
A quadrilateral has 3 angles measuring 90 degrees, 100 degrees, and 70 degrees. What is the measure of the 4th angle?
100 degrees, because the sum of all 4 angles in a quadrilateral always adds up to 360 degrees.
This is a closed figure with at least 3 sides.
A polygon
This tool is used to measure angles
A protractor
All angles in every triangle will add up to this number of degrees.
180 degrees
This is a quadrilateral with only one pair of opposite sides parallel
A trapezoid
A boat has a sail with one pair of perpendicular lines, and two sides the same length. What kind of triangle is it? (We need an angle and triangle name)
Right, isosceles triangle.