Adv. Alg. II Pythagorean Theorem and Trig Ratios

Front

What is the Pythagorean Theorem?

Back

Front

How do you find the length of a side in a right triangle using the Pythagorean Theorem?

Back

Front

What are trigonometric ratios?

Back

Trigonometric ratios are relationships between the angles and sides of a right triangle. The primary ratios are sine (sin), cosine (cos), and tangent (tan).

Front

Define sine (sin) in terms of a right triangle.

Back

Front

Define cosine (cos) in terms of a right triangle.

Back

Front

Define tangent (tan) in terms of a right triangle.

Back

Front

How do you calculate the angle using trigonometric ratios?

Back

Front

What is the relationship between the angles in a right triangle?

Back

The sum of the angles in a right triangle is always 180 degrees. One angle is 90 degrees, so the other two angles must sum to 90 degrees.

Front

If one angle in a right triangle is 64 degrees, what is the measure of the other non-right angle?

Back

Front

How do you round a number to the nearest tenth?

Back

To round to the nearest tenth, look at the hundredths place. If it is 5 or greater, round up the tenths place by one. If it is less than 5, keep the tenths place the same.