In triangle K, which trigonometric function is used to find angle K?
Trigonometric Functions and Angles
Interactive Video
•
Olivia Brooks
•
Mathematics
•
7th - 10th Grade
•
Hard
The video tutorial explains how to find angles in right triangles using trigonometric functions. It starts with triangle K, where the cosine function is used to determine angle K. The process involves identifying the adjacent and hypotenuse sides, then using the inverse cosine function to calculate the angle. The tutorial then moves to triangle R, demonstrating the use of the tangent function to find angle R by identifying the opposite and adjacent sides. Finally, it discusses complementary angles, showing how to calculate the third angle in a right triangle when two angles are known.
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tangent
Sine
Secant
Cosine
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ratio used in the cosine function for angle K?
Hypotenuse over Opposite
Opposite over Hypotenuse
Adjacent over Opposite
Adjacent over Hypotenuse
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the rounded measure of angle K?
46 degrees
44 degrees
42 degrees
40 degrees
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In triangle R, which sides are known from angle R?
Opposite and Hypotenuse
Adjacent and Hypotenuse
Opposite and Adjacent
Hypotenuse and Adjacent
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which trigonometric function is used to find angle R?
Cotangent
Tangent
Cosine
Sine
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the rounded measure of angle R?
74 degrees
70 degrees
72 degrees
68 degrees
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If angle R is 70 degrees, what is the measure of angle S?
10 degrees
20 degrees
30 degrees
40 degrees
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