Angles Theorem

For isosceles triangles, when we are given that two sides are congruent we can prove that ______________________.

• two angles are congruent

• the third side is congruent

• three angles are congruent

• no other relationships exist

Tags

CCSS.8.G.A.2

Fill in statement #3.

Tags

CCSS.HSG.SRT.B.5

Fill in reason.

• Symmetric Property

• CPCTC

• Transitive Property

• Reflexive Property

Tags

CCSS.HSG.SRT.B.5

Fill in statement #4.

Tags

CCSS.HSG.SRT.B.5

Sum of the 2 Remote Interior angle add up to the Exterior angle

so <1 + <2 = <4

• T R U E

• F A L S E

Tags

CCSS.8.G.A.5

What is the value of w?

(type the number only as an answer)

Tags

CCSS.8.G.A.5

Fill in reason #4.

• ASA

• HL

• SSA

• SAS

Tags

CCSS.HSG.SRT.B.5

Fill in reason #5.

• Prove

• Base angles of an isosceles triangle are congruent.

• CPCTC

• definition of angle bisector

Tags

CCSS.HSG.SRT.B.5

What is the measure of one EXTERIOR angle of a regular octagon?

• 60

• 45

• 1080

• 135

The following polygon is a Regular Pentagon. Find the measure of EACH EXTERIOR angle of the polygon.

• 50°

• 55°

• 72°

• 355°