The Basics of Geometry

I am sometimes known as an angle or a corner. I am where lines meet at a point.

• corner(s)

• vertex or vertices

• point(s)

Tags

CCSS.4.G.A.1

What angle is exactly 90 degrees?

• acute
• right
• obtuse
• straight line

Tags

CCSS.4.G.A.1

What angle is exactly 180 degrees?

• acute

• right

• obtuse

• straight

Tags

CCSS.4.G.A.1

What angle is less than 90 degrees?

• right
• straight line
• obtuse 
• acute

Tags

CCSS.4.G.A.1

Which angle is greater than 90 but less than 180 degrees?

• acute
• right
• obtuse
• straight line

Tags

CCSS.4.G.A.1

Parallel lines are lines that are in the same plane and they will never intersect.

• True

• False

Tags

CCSS.HSG.CO.A.1

For intersecting lines to be considered perpendicular they must intersect each other at 90 degrees.

• True
• False

Tags

CCSS.HSG.CO.A.1

How many sides does an octagon have?

• 5
• 6
• 7
• 8

Tags

CCSS.2.G.A.1

What is a polygon?

• an open shape with at least 3 line segments
• a closed shape with at least 3 line segments
• A closed shape with at least 2 line segments
• an open figure with at least 2 line segments

Tags

CCSS.2.G.A.1

For lines to be considered skew they must be in different planes and never intersect.

• True

• False

Tags

CCSS.HSG.CO.A.1