Show:
lines
triangles
Quads
Polygons
angles
100
a ray
What is a straight line with only one fixed end point?
100
an equilateral triangle
What is a three-sided polygon with all equal sides?
100
a square
What has four congruent sides and four right angles?
100
a hexagon
What is a polygon with six sides called?
100
an acute angle
What is an angle between 0-89 degrees called?
200
a line segment
What is a straight line with two fixed end points?
200
an isosceles triangle
What is a three-sided polygon with two equal sides?
200
a rectangle
What is a quadrilateral whose angles are all right angles?
200
an octagon
What is a polygon with eight sides called?
200
an obtuse angle
What is an angle called that is between 91 and 179 degrees?
300
a line
What is a two-dimensional object that has no endpoints and continues on forever in a plane?
300
a scalene triangle
What is a three-sided polygon with no equal sides?
300
a rhombus
What is a parallelogram with four congruent sides?
300
a nonagon
What is a polygon with nine sides called?
300
a right angle
What is an angle called that measures exactly 90 degrees?
400
perpendicular lines
What are two lines that intersect at right angles?
400
180 degrees
What is the total measurement of all three angles in any triangle?
400
a trapezoid
What is a quadrilateral with one pair of parallel sides?
400
a pentagon
What is a polygon with five sides and five angles called?
400
a straight angle
What is an angle called that measures exactly 180 degrees?
500
parallel lines
What two lines never touch and are always the same distance away from each other?
500
a right triangle
What is a three-sided polygon with one right angle?
500
360 degrees
What is the total degrees of all four angles in any quadrilateral?
500
a decagon
What is a polygon with 10 sides and 10 angles called?
500
a protractor
What instrument is used to measure angles?