#3.03 Drill 2/3/15

Use the diagram for Items 1–2.

1. Given that mABD = 16°, find mABC.

2. Given that mABD = (2x + 12)° and mCBD = (6x – 18)°, find mABC.

32°

54°

65

8.6

Use the diagram for Items 3–4.

3. Given that FH is the perpendicular bisector of EG, EF = 4y – 3, and FG = 6y – 37, find FG.

4. Given that EF = 10.6, EH = 4.3, and FG = 10.6, find EG.

Put HW and Pen on corner of your desk

Objective

• STW continue to work with

perpendicular bisectors and

angle bisectors

• STW review past information

including some SAT strategies

𝑚∠1 +𝑚∠11 +𝑚∠14 = 180°

Why?

Why?

𝑚∠3 +𝑚∠5 = 180°

Why?

𝑚∠11 = 𝑚∠13

Why?

𝑚∠14 +𝑚∠9 = 180°

Statement Reasons

A

B

D

C

E

DEAE

DEBAEC

BCDA ,

DEBAEC BDAC

E is the midpoint of 𝐴𝐷, 𝐴𝐶 ∥ 𝐵𝐷

Def of a Midpoint VA thrm

AIA thrm

AAS/ASA

CPCTC