Trig Law of Sines Practice

Front

What is the Law of Sines?

Back

Front

How do you use the Law of Sines to find a missing side?

Back

To find a missing side using the Law of Sines, set up the equation using the known angles and sides, then solve for the unknown side.

Front

What is the formula to find side c using the Law of Sines?

Back

Front

Back

To find x, rearrange the equation to solve for c, which gives you the value of x.

Front

What does the Law of Sines help to solve in triangles?

Back

The Law of Sines helps to solve for unknown sides and angles in non-right triangles.

Front

What is the relationship between angles and sides in the Law of Sines?

Back

The Law of Sines shows that larger angles correspond to longer opposite sides and smaller angles correspond to shorter opposite sides.

Front

If angle A = 41° and side a = 19, how can you find side b if angle B = 75°?

Back

Front

What is the sine of an angle in a right triangle?

Back

In a right triangle, the sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the sine of 90 degrees?

Back

The sine of 90 degrees is 1.

Front

How do you find the angle using the Law of Sines?

Back

To find an angle, rearrange the Law of Sines formula to isolate the sine function, then use the inverse sine function.