Law of Sines

Front

What is the Law of Sines?

Back

Front

What does the Law of Sines allow you to find?

Back

The Law of Sines allows you to find unknown angles and sides in a triangle when you have sufficient information about the triangle's other angles and sides.

Front

When can the Law of Sines be used?

Back

The Law of Sines can be used in any triangle, whether it is acute, obtuse, or right-angled, as long as you have at least one side and its opposite angle.

Front

What is the formula for the Law of Sines?

Back

Front

If angle A is 78 degrees and side a is 24, what is the relationship to find side b if angle B is known?

Back

Front

What is the sine of 90 degrees?

Back

The sine of 90 degrees is 1.

Front

What is the sine of 0 degrees?

Back

The sine of 0 degrees is 0.

Front

How do you calculate the length of a side using the Law of Sines?

Back

Front

What is the measure of angle A if side a is 24, side b is 20, and angle B is 61 degrees?

Back

Front

What is the relationship between angles and sides in a triangle according to the Law of Sines?

Back

The Law of Sines shows that the ratio of a side length to the sine of its opposite angle is constant across all three sides and angles of the triangle.