Answer:
Step-by-step explanation:
Since angle A is 36°, then angle B is 90° − 36° = 54°.
To find an unknown side, say a, proceed as follows:
1. Make the unknown side the numerator of a fraction, and make the known side the denominator.
Unknown
Known = a
10
2. Name that function of the angle.
Unknown
Known = a
10 = sin 36°
3. Use the trigonometric Table to evaluate that function.
Unknown
Known = a
10 = sin 36° = .588
4. Solve for the unknown side.
a = 10 × .588 cm = 5.88 cm
