What is the length of the hypotenuse in the initial right triangle?

Double Angle Identities and Triangle Properties

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
FREE Resource
Read more
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1
Theta
Pi/2
Sine of Theta
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the complementary angle of Theta in the original triangle?
Pi/2 + Theta
Pi/2 - Theta
2 Theta
Theta
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the angle of the larger isosceles triangle formed by reflecting the original triangle?
2 Theta
Theta/2
Theta
Pi/2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which law is used to derive the sine double angle identity?
Law of Cosines
Law of Sines
Law of Tangents
Pythagorean Theorem
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sine double angle identity derived in the video?
sin(2 Theta) = cos^2(Theta)
sin(2 Theta) = 2 sin(Theta) cos(Theta)
sin(2 Theta) = 1 - 2 sin^2(Theta)
sin(2 Theta) = sin^2(Theta)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which law is applied to derive the cosine double angle identity?
Law of Tangents
Law of Cosines
Law of Sines
Pythagorean Theorem
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the cosine double angle identity derived in the video?
cos(2 Theta) = 1 - 2 sin^2(Theta)
cos(2 Theta) = 2 sin(Theta) cos(Theta)
cos(2 Theta) = 2 cos^2(Theta) - 1
cos(2 Theta) = sin^2(Theta) + cos^2(Theta)
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the implicit assumption about the angle Theta in the diagram?
Theta is obtuse
Theta is acute
Theta is zero
Theta is right
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What challenge is posed regarding the double angle identities?
Disprove the identities
Prove identities for obtuse angles
Prove identities for right angles
Find a new identity
Similar Resources on Quizizz
11 questions
Trigonometric Identities and Functions

Interactive video
•
9th - 10th Grade
11 questions
Triple Angle Identities in Trigonometry

Interactive video
•
9th - 10th Grade
10 questions
Understanding Rotation Matrices

Interactive video
•
9th - 10th Grade
10 questions
Trigonometric Identities and Applications

Interactive video
•
9th - 10th Grade
9 questions
Trigonometric Expressions and Identities

Interactive video
•
9th - 10th Grade
11 questions
Trigonometric Functions and Identities

Interactive video
•
9th - 10th Grade
11 questions
Trigonometric Transformations and Proofs

Interactive video
•
9th - 10th Grade
11 questions
Trigonometric Identities and Concepts

Interactive video
•
9th - 10th Grade
Popular Resources on Quizizz
15 questions
Multiplication Facts

Quiz
•
4th Grade
25 questions
SS Combined Advisory Quiz

Quiz
•
6th - 8th Grade
40 questions
Week 4 Student In Class Practice Set

Quiz
•
9th - 12th Grade
40 questions
SOL: ILE DNA Tech, Gen, Evol 2025

Quiz
•
9th - 12th Grade
20 questions
NC Universities (R2H)

Quiz
•
9th - 12th Grade
15 questions
June Review Quiz

Quiz
•
Professional Development
20 questions
Congruent and Similar Triangles

Quiz
•
8th Grade
25 questions
Triangle Inequalities

Quiz
•
10th - 12th Grade
Discover more resources for Mathematics
40 questions
Week 4 Student In Class Practice Set

Quiz
•
9th - 12th Grade
25 questions
Triangle Inequalities

Quiz
•
10th - 12th Grade
10 questions
Exponential Growth and Decay Word Problems

Quiz
•
9th Grade
45 questions
Week 3.5 Review: Set 1

Quiz
•
9th - 12th Grade
17 questions
High School Survival Guide

Lesson
•
9th - 12th Grade
15 questions
Factoring Quadratics

Quiz
•
9th Grade