66.

67.

Solve for

. Which function formula is

used?

= _____

67.

So far, you have solved for the angle

68.

by knowing two sides and using three

trig functions. You will find it just as

easy to solve for the unknown sides of a right triangle when the angle and one side are

known.

HERE IS THE PROCEDURE TO FOLLOW:

a.

Look the problem over to see what is given and what you are asked to find.

b.

Choose the function formula (sin, cos, or tan) that uses both the given values and

the unknown value you are asked to find.

c.

Isolate the unknown quantity and place it to the left of the equal sign.

d.

Using the trig tables, solve for the unknown value.

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