9.25 Trigonometry Day 2: FLASHCARDS: optional Practice

Front

What do the angles in a triangle sum to?

Back

180 degrees.

Front

What is the formula for tangent in a right triangle?

Back

Front

If two angles in a triangle are 64° and 90°, what is the measure of the third angle?

Back

26°.

Front

What is the sine ratio used to find side AB in a right triangle where Sin 60 = AB / 10?

Back

Sin 60 = AB / 10.

Front

What is the cosine ratio in a right triangle?

Back

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

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

Back

The side opposite the largest angle is the longest.

Front

What is the formula for finding the hypotenuse in a right triangle?

Back

Front

What is the definition of a right triangle?

Back

A triangle with one angle measuring 90 degrees.

Front

What is the Pythagorean theorem?

Back