polygons Basic

What is a polygon?

• A closed plane figure made up of line segments
• An open plane figure made up of line segments
• A closed plane figure made up of rays
• An open plane figure made up of rays

Polygon or Non-Polygon?

• Polygon
• Non-Polygon

The shape shown is a square. Why could it also be considered a rhombus?

• It has 4 right angles.

• It has 4 congruent sides.

• There are no parallel sides.

• There are no perpendicular lines.

The displayed shape is a square. Why could it also be called a rectangle?

• It has two long sides and two short sides.

• There are no parallel lines.

• It has four right angles.

• It has four equal sides.

The square could also be called a parallelogram because...

• It has two sets of parallel lines.

• It has four congruent sides.

• It has four right angles.

• It is not a quadrilateral.

Select the two correct ways to classify the triangle in the picture.

• isosceles

• right

• scalene

• acute

• obtuse

Which triangle could not exist?

• Right Scalene

• Acute Scalene

• Acute Equilateral

• Right Equilateral

A square is a rectangle.

• always

• sometimes

• never

A rectangle is a parallelogram.

• always

• sometimes

• never

A circle is a polygon.

• always

• sometimes

• never