9.A right-angled triangle has hypotenuse 13 mm. Find the length of the other two sides if one of the angles
of the triangle is 50°.
10.Solve forxto the nearest integer.
a)
10
x◦
8,19
b)
7
55 ◦
x
c)
x
8
55 ◦
d)
60 ◦
x
5,2
e)
x
50 ◦
9,R
Chapter 5. Trigonometry 141