1. Geometry Name: __________________________
Unit 5 WS 3 Date: ___________________________ A
D is the midpoint of AC. E is the midpoint of BC. F is the midpoint of AB.
Draw in the three medians.
Name the three medians:
_______ _______ _______ D F B E C G
mÐGJK = 90, mÐKHI = 90, mÐILK = 90.
Name the three altitudes:
_______ _______ _______
Is H necessarily the midpoint of GI? _______
If H was the midpoint of GI, then KH would not only be an altitude of DKGI, but it would also be a(n) ___________.
You could also call KH a(n) ________________ __________________ of GI. L H K J I M
If QN is a median, then _____.
If MP is a median, then ______.
If OR is a median, then ______.
N is the ____________ of MO.
P is the ____________ of QO.
R is the ____________ of QM. R N
If RQ = 4, then RM = _______.
If OM = 10, then MN = ______.
If QP = 6.5, then QO = ______. O Q P

2. Geometry Name: __________________________
Unit 5 WS 3 Date: ___________________________
AD, BE, CF are medians of DACE.
KH, GJ, IL are altitudes of DKGI A K
3x + 2 F B
x + 12 L J C
2y + 12 D
5y -6 E G I H
x = ______
AF = _______
FE = _______
AE = _______
y = ________
CD = _______
DE = _______
CE = _______
mÐKLI = ______
mÐGJI = ______
mÐKHI = ______
mÐKHG = ______
mÐILG = ______
mÐGJK = ______
Can you conclude that HI? ______ D
Given: DB is the perpendicular bisector of AC.
1.) mÐABD = _________
2.) mÐDBC = _________
3.) B is the _____________________ of AC.
4. ________ A C B
5.) mÐBAD = 30. mÐADB = _______. DADB is a(n) (scalene, isosceles, equilateral) triangle.
6.) mÐBCD = 45. mÐBDC = ________. DDBC is a(n) (scalene, isosceles, equilateral) triangle.
7.) If DB bisects ÐADC and mÐADB = 32, then mÐCDB = _______ and mÐADC = ________.
8.) If CD, then DADC is a(n) (scalene, isosceles, equilateral) triangle.
9.) If mÐDAB = 42 and mÐDCB = 56, then mÐADC = ____________.
10.) If mÐABD = 12x – 6, then x = ________.

3. Geometry Topics
Medians and Altitudes of Triangles
Name: _______________________________
Date: ________________________________ 1. A 2. L K B M J D C
If AB = BC, then DB is a(n)
______________ of DDAC.
If JK ^ LM, then JK is a(n)
__________________ of DLJM. 3. 4. V N
VT is a median of DSVW.
ST = 3x - 3
TW = 2x + 1
SW = x + 14 P R Q S W T
If NQ is both a median and an altitude of DPNR, then NQ can be called a(n) _______________________
_______________________.
x = _________
ST = ________
TW = ________
SW = ________