Weekly Spiral Review S2 #4 (Geometry EOC Review pt 1)

Front

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

Back

The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

If cos A = \frac{\sqrt{21}}{5}, what is sin B in triangle ABC where angle C is a right angle?

Back

sin B = sin A = \frac{\sqrt{21}}{5} because sin and cos are co-functions in a right triangle.

Front

What does the AA similarity postulate state?

Back

If two angles of one triangle are equal to two angles of another triangle, then the triangles are similar.

Front

In similar triangles, what can be said about their corresponding angles?

Back

All corresponding angles in similar triangles are congruent.

Front

What is the definition of a translation in geometry?

Back

A translation moves every point of a figure the same distance in the same direction.

Front

How do you determine if two triangles are similar using the SSS similarity postulate?

Back

If the lengths of the corresponding sides of two triangles are proportional, then the triangles are similar.

Front

What is the relationship between sine and cosine in a right triangle?

Back

sin A = cos(90° - A) for any angle A in a right triangle.

Front

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

Back

The sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

If a quadrilateral is translated 6 units down and 3 units left, how do you describe this transformation?

Back

The quadrilateral moves vertically down by 6 units and horizontally left by 3 units.

Front

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

Back

The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.