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Trigonometry

Identities in Decimal from Diagrams (Level 1)

This math topic focuses on practicing trigonometric identities and solving for trigonometric ratios such as sine and cosine from diagrams, with answers provided in decimal form. Each question presents a diagram and requires determining the correct trigonometric value, with multiple potential answers given. This set of problems is designed to strengthen understanding of trigonometry fundamentals at an introductory level.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Trigonometry - Identities in Decimal from Diagrams Worksheet

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Math worksheet on 'Trigonometry - Identities in Decimal from Diagrams (Level 1)'. Part of a broader unit on 'Trigonometry - Solving Triangles - Intro' Learn online: app.mobius.academy/math/units/trigonometry_solving_triangles_intro/
1
An svg image showing a math problem
Solve for the trigonometric ratio in decimal form
a A LaTex expression showing sin(A) = 0.33
b A LaTex expression showing sin(A) = 121.20
c A LaTex expression showing sin(A) = 0.37
d A LaTex expression showing sin(A) = 0.64
e A LaTex expression showing sin(A) = 2.11
f A LaTex expression showing sin(A) = 0.42
2
Solve for the trigonometric ratio in decimal form
An svg image showing a math problem
a A LaTex expression showing sin(A) = 1.04
b A LaTex expression showing sin(A) = 1.00
c A LaTex expression showing sin(A) = 0.59
d A LaTex expression showing sin(A) = 1.09
e A LaTex expression showing sin(A) = 0.82
f A LaTex expression showing sin(A) = 0.84
3
Solve for the trigonometric ratio in decimal form
An svg image showing a math problem
a A LaTex expression showing sin(A) = 16.76
b A LaTex expression showing sin(A) = 0.65
c A LaTex expression showing sin(A) = 0.29
d A LaTex expression showing sin(A) = 0.34
e A LaTex expression showing sin(A) = 0.88
f A LaTex expression showing sin(A) = 0.72
4
Solve for the trigonometric ratio in decimal form
An svg image showing a math problem
a A LaTex expression showing sin(A) = 40.48
b A LaTex expression showing sin(A) = 0.78
c A LaTex expression showing sin(A) = 0.73
d A LaTex expression showing sin(A) = 1.00
e A LaTex expression showing sin(A) = 0.15
f A LaTex expression showing sin(A) = 0.51
5
Solve for the trigonometric ratio in decimal form
An svg image showing a math problem
a A LaTex expression showing cos(A) = 0.26
b A LaTex expression showing cos(A) = 0.69
c A LaTex expression showing cos(A) = 0.21
d A LaTex expression showing cos(A) = 0.89
e A LaTex expression showing cos(A) = 0.57
f A LaTex expression showing cos(A) = 0.80
6
Solve for the trigonometric ratio in decimal form
An svg image showing a math problem
a A LaTex expression showing tan(A) = 2.32
b A LaTex expression showing tan(A) = 1.05
c A LaTex expression showing tan(A) = 1.84
d A LaTex expression showing tan(A) = 1.74
e A LaTex expression showing tan(A) = 76.50
f A LaTex expression showing tan(A) = 1.17
7
Solve for the trigonometric ratio in decimal form
An svg image showing a math problem
a A LaTex expression showing tan(A) = 0.62
b A LaTex expression showing tan(A) = 0.57
c A LaTex expression showing tan(A) = 1.11
d A LaTex expression showing tan(A) = 1.16
e A LaTex expression showing tan(A) = 0.64
f A LaTex expression showing tan(A) = 0.84