Math 3 - Final Exam Review

Front

What is the coordinate on the unit circle at 30°?

Back

(√3/2, 1/2)

Front

If (x + 5) is a factor of the polynomial y = x³ + 4x² - 11x + k, what is another factor?

Back

(x + 2)

Front

What is true about consecutive angles in a parallelogram?

Back

Their sum is 180°.

Front

In parallelogram ABCD, if angle A = 40° and angle C = 2x - 10, what is the value of x?

Back

25

Front

What is the length of an arc with a central angle of 2π/3 radians in a circle with a radius of 5 inches?

Back

10π/3 inches

Front

Define a unit circle.

Back

A circle with a radius of 1 centered at the origin of a coordinate plane.

Front

What is the relationship between the angles in a parallelogram?

Back

Opposite angles are equal and consecutive angles are supplementary.

Front

How do you find the length of an arc in a circle?

Back

Arc length = radius × central angle (in radians).

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

What is the Pythagorean theorem?

Back

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