Geometry Review What is a six sided polygon

Geometry Review

What is a six sided polygon called?

Hexagon

What is a polygon with all angles and sides congruent called?

Regular polygon

What is a quadrilateral with opposite sides parallel called?

parallelogram

A simple closed figure formed by three or more sides is called what?

polygon

What is the most common unit of measure for an angle?

degree

What do you call an angle whose measure is between ° 0° and 90°?

Acute angle

What do you call an angle whose measure is between 90° and 180°?

Obtuse angle

What is a straight angle?

An angle that measures exactly 180°

If the sum of two angles adds to 180°, then they are called what?

Supplementary angles

If the sum of two angles adds to 90°, then they are called what?

Complementary angles

What is the supplementary angle of an angle that measures 43°?

137°

A triangle whose sides and angles are congruent is called what?

An equilateral triangle

A triangle that has 2 sides congruent is called what?

Isosceles triangle

If a triangle’s three sides are all different lengths, then it is called what?

Scalene triangle

What is an eight sided polygon called?

Octagon

What is a five sided polygon called?

Pentagon

What is an edge?

The intersection of faces of a 3 dimensional figure

How many edges does a hexagonal pyramid have?

12

What are vertices?

The point where the edges of a 3 dimensional figure intersect

How many vertices does a square pyramid have?

5

What is a face?

The flat surfaces of a three-dimensional figure

How many faces does a pentagonal prism have?

7

Sketch the net of a square pyramid.

What polygons make up the net of a cylinder?

Two circles and one rectangle

Why isn’t a circle a polygon?

It does not have sides, and it has curved edges.