10-7
What is a polygon?
A multi-sided shape
What do all three angles in a triangle add up to?
180 degrees
What is a quadrilateral?
A four sided polygon
What do we use to name a circle?
The center point.
What is the difference between a regular and a not regular polygon?
A regular polygon has sides that are all the same length.
We classify triangles based on two things. What are they?
Angle measure and side length.
What are 3 types of parallelograms?
Square, rectangle and rhombus
Which is bigger- the radius or the diameter?
The diameter
How many vertices does a square have?
4
What kind of triangle has one right angle?
A right triangle
How are a square and a rhombus different?
They both have 4 congruent sides but the rhombus does not have right angles
True or false: all radii go from the center of the circle to a point on the circle
True
What can we think of when deciding if a shape is concave?
It has a cave like entrance
What kind of triangle would have no equal sides?
Scalene
How many pairs of parallel sides does a trapezoid have?
1
True or False: A diameter usually goes through the center of the circle.
False- a diameter always goes through the center of the circle.
How many sides does a heptagon have?
7
What kind of triangle would have 2 equal sides and one right angle?
An isosceles right triangle
How are a square and rectangle the same?
They both have 4 right angles.
What is a chord?
A chord goes across the circle from one point on the circle to another but does not always cross through the center point.