N e
x
t

y
e
a
r
,

t
h
e

C
h
r
i
s
t
m
a
s

D
a
y

w
i
l
l

b
e

o
n

25
t
h

D
e
c
e
m
b
e
r

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.