
Inverse Trig Functions with Reference Triangles
Authored by Anthony Clark
Mathematics
11th Grade
20 Questions
CCSS covered

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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which equation would you use to solve for the unknown angle?
x = tan–1(24/7)
x = tan–1(7/24)
x = tan–1(25/7)
x = tan–1(7/25)
Tags
CCSS.HSG.SRT.C.8
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which equation could be used to solve for the unknown angle?
x =sin–1(25/24)
x = sin–1(24/25)
x = sin–1(25/7)
x = sin–1(7/25)
Tags
CCSS.HSG.SRT.C.8
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which equation is true?
sin (x) = 14/29
cos (x) = 14/29
tan (x) = 14/29
tan (x) = 29/14
Tags
CCSS.HSG.SRT.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which equation would you use to solve for the unknown angle?
x = sin–1(4/5)
x = cos–1(4/5)
x = cos–1(5/4)
x = tan–1(4/5)
Tags
CCSS.HSG.SRT.C.8
5.
MATCH QUESTION
1 min • 1 pt
Match the following definitions with the correct word
Arccosine
The --------- of a number between 0 and 1 is the
acute angle whose sine is that number.
Arctangent
The ----------- of a positive number is the acute
angle whose tangent is that number.
Arcsine
The ---------- of a number between 0 and 1 is the
acute angle whose cosine is that number.
6.
DRAG AND DROP QUESTION
1 min • 3 pts
Find A, B, and C.
angle A = (a)
angle B = (b)
angle C = (c)
20.49
90
69.51
32.84
57.16
37.17
52.83
60
30
Tags
CCSS.HSG.SRT.C.8
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which equation would you use to solve for the unknown angle?
x =tan–1(51/85)
x = tan–1(85/51)
x = tan–1(51/68)
x = tan–1(68/51)
Tags
CCSS.HSG.SRT.C.8
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