Plane Figures

Which of the following is a four-sided polygon?

• Triangle

• Pentagon

• Quadrilateral

• Hexagon

What is the name of a plane figure with three angles, three sides and three vertices?

• Square

• Circle

• Triangle

• Rectangle

A rectangle has how many lines of symmetry?

• 1

• 2

• 3

• 4

Which of the following has all sides of equal length and all angles equal?

• Rectangle

• Square

• Trapezoid

• Rhombus

What shape is often used as a symbol for "stop" in traffic signs?

• Circle

• Octagon

• Triangle

• Square

How many sides does a hexagon have?

• 5

• 6

• 7

• 8

What shape is this?

• Pentagon

• Hexagon

• Heptagon

• Octagon

Which is true?

A. An equilateral triangle is also an isosceles triangle.

B. An isosceles triangle is also an equilateral triangle.

C. A rectangle is also a parallelogram.

D. A parallelogram is also a rectangle.

• A and B

• C and D

• A and C

• B and D

Which plane figure has only one pair of parallel sides?

• Rectangle

• Parallelogram

• Trapezoid

• Rhombus

If a triangle ha one right angle, what type of triangle is it?

• Acute Triangle

• Obtuse Triangle

• Right Triangle

• Equilateral Triangle