Right Triangle Trigonometry
Presentation
•
Mathematics
•
9th - 12th Grade
•
Medium
+1
Standards-aligned
Alisa Grimes
Used 392+ times
FREE Resource
7 Slides • 11 Questions
1
Right Triangle Trigonometry
An Introduction
2
Sides of a Right Triangle
The HYPOTENUSE is directly across from the right angle.
The OPPOSITE side is directly across from the referenced angle.
The ADJACENT side is the last side. It is the side that touches the angle, but isn't the hypotenuse.
3
The Angle
The referenced angle could be indicated by the Greek symbol "theta", by an arc marking it, or by a measure placed in the figure. It could also be marked with an "x" or other variable if you're expected to use trig to find its measure.
4
Multiple Choice
Which part of the right triangle is side BC?
5
Multiple Choice
Which part of the right triangle is side AC?
6
Multiple Choice
Which part of the right triangle is side AB?
7
Trigonometric Ratios
Remember, each of these ratios relies on you identifying the sides of the triangle based on your reference angle.
8
Multiple Choice
What is the correct trigonometric ratio for the sine of A?
9
Multiple Choice
What is the correct trigonometric ratio for the cosine of B?
10
Multiple Choice
What is the correct trigonometric ratio for the tangent of A?
11
Multiple Choice
What is the correct trigonometric ratio for the sine of B?
12
13
Algebra Shortcuts
These are the shortcut triangles for each of the trigonometric functions. Remember when using them, you should always put the side measure into the calculator first.
14
Multiple Choice
Find the length of the missing side to the nearest tenth.
15
Multiple Choice
Find the length of the missing side to the nearest tenth.
16
17
Multiple Choice
Find the measure of the angle to the nearest degree.
18
Multiple Choice
Find the measure of the angle to the nearest degree.
Right Triangle Trigonometry
An Introduction
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