Unit 5 & 6 Review - Trigonometry & Circles

Front

Find x: If the triangle has sides 6, 8, and x, what is x?

Back

6

Front

What is a segment with 2 endpoints on the circle called?

Back

Chord

Front

Find the length of the bold arc: If the radius is 5 ft and the angle is 18 degrees, what is the arc length? Leave pi in your answer.

Back

15.8π ft

Front

Find sinC: In a right triangle, if the opposite side is 28 and the hypotenuse is 35, what is sinC?

Back

28/35

Front

What is the equation of the circle with center (-1, -1) and radius 3?

Back

(x+1)² + (y+1)² = 9

Front

Define a Chord in a circle.

Back

A line segment with both endpoints on the circle.

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.

Front

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

Back

The sum of the angles is 180 degrees, with one angle being 90 degrees.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

Define a Diameter in a circle.

Back

A chord that passes through the center of the circle.