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Worksheets

TOD 12-5-22

Total questions: 7

Worksheet time: 22mins

Name
Class
Date
1.
What is the missing number?
sin(60) = cos(   )
a)
10
b)
20
c)
30
d)
40
2.
What is the missing number?
Sin(   ) = Cos(40)
a)
30
b)
40
c)
50
d)
60
3.
If cos α = sin β, what must be true about α and β?
a)
α and β are complementary angles
b)
α and β are congruent angles
c)
α and β are right angles
d)
α and β are supplementary angles
4.
What are complementary angles?
a)
Angles that add up to 180°
b)
Angles that add up to 90°
c)
Angles that are equal to each other
d)
Angles that are opposite of each other when lines intersect.
5.

What is the complement to: cos 40⁰ = ?

a)

sin 50⁰

b)

cos 50⁰

c)

tan 50⁰

d)

sin 40⁰

6.

If sin(5x - 8) = cos(2x + 7)

Which equation will help find the value of x?

a)

(5x - 8) + (2x + 7) = 90

b)

(5x - 8) + (2x + 7) = 180

c)

(5x - 8) = (2x + 7)

d)

(5x - 8) - (2x + 7) = 90

7.

Solve for x. cos(2x +9) = sin(x)

a)

x = 27

b)

x = -9

c)

x = 57

d)

x = 9