Triangles and Theorems

What is this?

The Sum of the measures of the angles of a triangle is 180.

• Triangle Angle Sum Theorem

• Exterior Angle Theorem

• Triangle Angle Sum Postulate

• Vertical Angle Theorem

Tags

CCSS.8.G.A.5

What is this?

If two parallel lines are cut by a transversal, then each pair of corresponding angles is congruent.

• Alternate Interior Angles Theorem

• Alternate Exterior Theorem

• Corresponding Angles Theorem

• Corresponding Angles Postulate

Tags

CCSS.8.G.A.5

What is this?

If a pair of parallel lines is cut by a transversal, then the alternate interior angles formed are congruent.

• Alternate Exterior Angles Theorem

• Alternate Interior Angles Theorem

• Corresponding Angles Postulate

• Consecutive Interior Angles Theorem

Tags

CCSS.8.G.A.5

What is this?

If two angles are vertical angles, then they are congruent.

• Vertical Angle Theorem

• Vertical Angle Postulate

• Vertical Angle Axiom

Tags

CCSS.7.G.B.5

There can be at most one right angle in a triangle.

• True

• False

Tags

CCSS.8.G.A.5

There can be more than one obtuse angle in a triangle.

• True

• False

Tags

CCSS.8.G.A.5

6ft., 8ft., and 15ft. makes a triangle.

• True

• False

Tags

CCSS.7.G.A.2

What is the minimum value of the third for the triangle with side lengths 12 and 6?

• 6

• 7

• 25

• 26

What is the maximum length of the third side for a triangle with side lengths 6 and 12?

• 6

• 7

• 25

• 26

A theorem is

• a statement that does not require proof

• a statement that can have proof or not have proof

• a statement that requires proof

Tags

CCSS.7.G.A.2