Solve the following problems for x. Leave your answer in simplest radical form.
16.
17.
12
x
x
17
8
13
=
−
=
2
2
18.
2
x
80
19.
5
x
120 0
−
− =
−
− =
2
2
20.
21.
3
x
6
x
5 0
5
x
10
x
6 0
22. Find the perimeter and area of the figure. Leave your answers in simplest radical form.
(Note: you can only add things with the same last names, but you can multiply anything!)
10 cm
8 cm
60°
45°
figure not drawn to scale