Examples
1. Given:
ABCD with diagonal AC
Complete each statement and give a justification using a definition,
postulate or theorem.
D
C
A
B
a) DC
______
______________________________________
b) ∠ ADC ≅ _____
______________________________________
c) ∠ DCA ≅ _____
______________________________________
≅
d)
AD
_______
______________________________________
e) ∆ ADC ≅ _____
______________________________________
f) ∠ BCA ≅ _____
______________________________________
≅
g)
DC
______
_______________________________________
h) ∠ DCB ≅ _____
_______________________________________
2. Given:
FRED
Find the value of x and the indicated measure(s) for each of the following.
D
E
F
R
a) DE = (3x - 2) cm
FR = (2x + 7) cm
5
RE = (
x + 4) cm
3
x = _________
DE = _________
DF = _________