ADM 109 - Unit 15

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A right triangle has one side of 5 and another side of 4 (neither side is the hypotenuse). What is the angle adjacent to the side that is 5?

38.66°

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

5 ft

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

75.05

A right angle is an angle of _____.

90°

Vectors must be added using _____ addition.

a combination of geometric and algebraic

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 _____.

adjacent side

The Pythagorean theorem is _____.

c2 = a2 + b2

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

cosine

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

hypotenuse

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

hypotenuse

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?

12.12

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

15 inches

The memory aid to help you remember the trigonometric function relationships is _____.

Oscar had a heap of apples

In a right triangle, the sum of the squares of two sides is equal to the square of the hypotenuse. This was discovered by a Greek named _____.

Pythagoras

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 _____.

opposite side

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

right

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

sine

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

vector


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