Exam 15: Basic Trigonometry and Vectors

What is the approximate sum of the following two vectors: magnitude 10 at 120° and magnitude 15 at 90°?

A line that indicates both magnitude and direction is a _____.

A right angle is an angle of _____.

In a right triangle, the side across from an angle (the side is not one of the two that make the angle) is called the _____.

A right triangle has two sides that are 9 inches and 12 inches. How long is the hypotenuse?

The Pythagorean theorem is _____.

Vectors must be added using _____ addition.

The side of a right triangle that is opposite the right angle is called the _____.

One method of adding two vectors that originate at the same point is the _____ method.

In a right triangle, the longest side is called the _____.

A right triangle has one angle that is 60°. The side adjacent to the 60° angle has a length of 7 inches. How long is the opposite side?

What is the approximate sum of the following two vectors: magnitude 20 at 30 ° and magnitude 10 at 60°?

A triangle which contains one 90 ° angle is called a(n) _____ triangle.

The function that is equal to the opposite divided by the hypotenuse is the _____.

Which memory aid will help you remember the trigonometric function relationships?

What is the approximate sum of the following two vectors: magnitude 5 at 0 ° and magnitude 10 at 180 ° ?

In a right triangle, the two non-right angles are each formed by the hypotenuse and one of the other sides. From the perspective of the angle, the side that is not the hypotenuse is called the _____.

A right triangle has a hypotenuse of 87 and one side that is 44. How long is the other side?

A right triangle has a hypotenuse of 10 ft. and one angle of 30°. How long is the side opposite the angle?

The function that is equal to the adjacent divided by the hypotenuse is the _____.