Show:
lines, rays and segments
angles
triangles
polygons
tessellations
100
Two of these form an angle
What is a ray
100
An angle measuring between 180 and 360 degrees.
What is a reflex angle.
100
A triangle with three sides that are equal in length.
What is an equilateral triangle.
100
Quadrilaterals or quadrangles are names given to polygons with this number of sides.
What is 4?
100
A tessellation made with a repeating pattern of one regular polygon.
What is a regular tessellation.
200
This figure has two endpoints
What is a line segment
200
An angle that measures between 0 and 90 degrees.
What is an acute angle?
200
The sum of the degrees in a triangle.
What is 180 degrees?
200
A polygon with all equal sides and all equal angles has this "special" name.
What is a regular polygon.
200
A tessellation made with two or more regular polygons.
What is a semi-regular tessellation?
300
Lines that intersect to form right angles
What is perpendicular
300
Angles that share one vertex and one side.
What are adjacent angles?
300
A triangle with one angle measuring between 90 and 180 degrees.
What is an obtuse triangle.
300
A circle is not a polygon because it is made of this.
What is a curved line.
300
The fifth grade term for "slide"
What is translation?
400
Lines that are equidistant and will never intersect.
What are parallel lines.
400
Angles that form when two lines intersect and share a vertex.
What are vertical or opposite angles?
400
If the sum of two angles in a triangle is 90 degrees, it is this type of triangle.
What is a right triangle?
400
A polygon will have an interior reflex angle if it also has this property.
What is concave.
400
A tessellation is a repeating pattern of shapes that completely cover a surface without _____________ or _________________.
What is gaps or overlaps.
500
A straight line that begins at one point on a circle, passes through the centerpoint and reaches the other side of the circle.
What is a diameter.
500
When two lines intersect, the measure of two adjacent angles will always be this.
What is 180 degrees?
500
The measure of all three angles in an equilateral triangle.
What is 60 degrees.
500
This formula, when x=number of sides, can be used to find what: (x-2)*180=
What is the sum of the angles in a polygon.
500
An artist/mathematician who's famous for his unusual tessellation creations.
Who is MC Escher.