Trigonometry Geo Final Review

What is the height of the tree? Round the the nearest foot. 

• 38 ft
• 63 ft
• 20 ft
• 98 ft

Solve for the missing angle. Round the nearest degree.

• 50

• 36

• 37

• 35

Find the cofunction of 
sin(42^o)=

• cos(42^o)
• cos(48^o)
• csc(48^o)
• csc(42^o)

In ∆ABC, where ∠C is a right angle,

cos A= √21 ⁄ 5 . What is sin B?

• √21 ⁄ 5

• √21 ⁄ 2

• 2 ⁄ 5

• 5 ⁄ √21

In right triangle ABC, m∠C =90°. If cos B= 5 ⁄ 13, which function also equals 5 ⁄ 13?

• tanA

• tanB

• sinA

• sinB

In scalene triangle ABC shown in the diagram above, m∠C = 90°. Which equation is always true?

• sinA=sinB

• cosA=cosB

• cosA=sinC

• sinA =cosB

If sin(2x+7)°=cos(4x−7)°, what is the value of x?

• 7

• 15

• 21

• 30

In a right triangle,

sin(40−x)°=cos(3x)°.

What is the value of x?

• 10

• 15

• 20

• 25

Find the missing value.

Round to the nearest tenths.

• 52.1^o

• 37.9^o

• 52.1 cm

• 50.6 cm

Find x if sin 22^o = 2/x.

• 6.78
• 0.75
• 2.14
• 5.34