ADM 109 - Unit 15
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