Angles
the term for a 90-degree angle
A right angle
what is The number of sides on a quadrilateral
four
Two lines thats are the same distance apart and will never touch
Parralel lines
A triangle that has all sides the same length
A equilateral
A boat has a sail with one pair of perpendicular lines, and two sides the same length. What kind of triangle is it?
A right, isosceles
An angle that is less than 90 degrees
Acute angle
the number of degrees all angles of a quadrilateral will add up to
360 degrees
Lines that Intersect to form a right angle
Perpendicular lines
A triangle with two sides the same length
Isosceles triangle
A shape with 5 sides is called
A pentagon
an angle that is greater than 90 degrees
obtuse angle
a quadrilateral with two pairs of opposite sides parallel and 4 right angles
a rectangle
what has one endpoint and continues in one direction forever
a ray
A triangle with one angle greater than 90 degrees
A obtuse Triangle
A quadrilateral has 3 angles measuring 90 degrees, 100 degrees, and 70 degrees. What is the measure of the 4th angle?
100 Degrees
the number of degrees in a straight angle
180 Degrees
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 part/Segment of a line
A line segment
A triangle with a 90-degree angle and no sides the same length
A right, Scalene triangle
A shape that has 6 sides is called
A hexagon
is used to measure angles
protracter
a quadrilateral with only one pair of opposite sides parallel
A trapezoid
A closed figure with at least three sides
A polygon
All angles in every triangle will add up to this number of degrees
180 Degrees
A right triangle has one angle that is 45 degrees. What is the measure of the 3rd angle?
45 degrees