Polygons
What is a polygon?
A shape made up of straight lines that are connected to form a closed figure.
What is a quadrilateral?
A polygon with 4 sides
What is the most specific type of quadrilateral?
A square.
How many degrees does a triangles have?
180 degrees.
What is a triangle with two sides of equal length called?
An isosceles triangle
How many sides does a pentagon have?
A pentagon has 5 sides.
What shape has opposite sides that are equal and four right angles?
A rectangle.
Which quadrilaterals are always parallelograms? (need all 3 answers)
Rectangles, rhombuses, and squares.
What do you call a triangle with one angle greater than 90 degrees?
An obtuse triangle.
What type of triangle has all sides of different lengths?
A scalene triangle.
Name a polygon with 8 sides.
An octagon.
What is the name of a quadrilateral with all sides equal but not all angles equal?
A rhombus.
Can a shape be both a rectangle and a rhombus? What is it called?
Yes, it is called a square.
What type of triangle has all angles less than 90 degrees?
An acute triangle.
What is a triangle with all sides of equal length called?
An equilateral triangle
What do we call a polygon with all sides of equal length?
A regular polygon.
How many sides does a square have?
A square has 4 sides.
What two properties define a parallelogram?
Opposite sides are equal and opposite angles are equal.
If one angle in a triangle is 50 degrees and another is 60 degrees, what is the third angle?
The third angle is 70 degrees
In a triangle with sides of lengths are 6 cm, 6 cm, and 4 cm and it has a 90 degree angle. What are both names for this triangle?
An isosceles and right triangle
Can a polygon have curved sides?
No
What do you call a quadrilateral where only one pair of opposite sides are parallel?
A trapezoid.
Can a kite be a square? (2 reasons)
No, because it does not have parallel lines or right angles.
If one angle in a triangle is 120 degrees, what type of triangle is it?
An obtuse triangle.
Can an equilateral triangle also have obtuse angles?
No because all 3 angles have to be the same.