3) A diagonal brace is to be placed in the wall of a room. The height of the wall is
10 feet and the wall is 22 feet long. What is the length of the brace?
10 fee t
24 fee t
=
+
2
2
2
c
10
24
=
+
2
c
100
576
=
2
c
676
=
2
c
676
=
c
26
feet
4)
A television antenna is to be erected and held by guy wires. If the guy wires are 40 ft
from the base of the antenna and the antenna is 50 ft high, what is the length of each guy
wire?
50 ft
40 ft
=
+
2
2
2
c
40
50
=
+
2
c
1600
2500
=
2
c
4100
=
2
c
4100
≈
c
64
feet