180 likes | 520 Views
SECTION 2.2 Angle Bisectors. VOCBAULARY Angle Bisector. LEARNING TARGETS: I will be able to identify angle bisectors. I will be able to find angle measures using the angle bisector. Activity 2.2. QUESTION : How can you bisect an angle? MATERIALS: Protractor Straightedge
E N D
SECTION 2.2Angle Bisectors VOCBAULARY Angle Bisector LEARNING TARGETS: I will be able to identify angle bisectors. I will be able to find angle measures using the angle bisector.
Activity 2.2 QUESTION: • How can you bisect an angle? MATERIALS: • Protractor • Straightedge • Page 60 in Textbook
Angle Bisector • ANGLE BISECTOR: • A ray that divides an angle into two angles that are congruent. BD is an angle bisector • DB is an angle bisector.
Example (Notes) NQ bisects ∠MNP. m∠MNP = 74°. Find m∠MNQ and m∠PNQ. m∠MNQ = m∠PNQ =
Example (Textbook) m∠ABD = m∠DBC =
Example (Notes) AB bisects ∠FAH.m∠BAF=38° m∠HAB = m∠FAH= Classify ∠FAH:
Example (Notes) GJ bisects ∠FGH. Find the value of x. x =
Example (Notes) • AD bisects ∠CAT. Find the angle measure. m∠ CAD = __________ m∠ DAT = _________
Example (Notes) • OH bisects ∠DOG. Find x.
Example (Notes) • OH bisects ∠DOG. Find x.
Example (Notes) • Use the figure at the right to complete the statements.
Cooperative Learning • Angle Bisector Worksheet
HOMEWORK • Section 2.2 Assignment • Page 64 #8-26, 28-30, and 33 • Due Wednesday, 10/19