Solving Missing Sides of Triangle Using Trig Functions

What equation can be used to solve for x?

• Sin(40°)= x/40 
• Sin(40º)=x/19
• Cos(40º)=x/19
• Tan(40°)=19/x

Tags

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

Solve for x. Round to the nearest tenth.

• 103.5
• 4.7
• 55.0
• 23.4

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Solve for x. Round to the nearest tenth.

• 9.8
• 0.1
• 0.038
• 9.9

Tags

CCSS.HSA.CED.A.1

CCSS.HSF.TF.B.7

Find the measurement of the missing side indicated

• 4.39
• 3.21
• 2.19
• 2.05

Tags

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

Find the measurement of the missing side indicated

• 4.98
• 5.98
• 3.20
• 4.18

Tags

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

Choose the correct ratio.

• cos(33)=x/14
• sin(33)=x/14
• cos(33)=14/x
• sin(33)=14/x

Tags

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

Solve for x.

• 50.7
• 50.1
• 60.7
• 61.0

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

Solve for x.

• 10
• 11.3
• 12.0
• 15.0

Tags

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

CCSS.HSG.SRT.D.11

Susan is flying a kite, which gets caught in the top of a tree.  Use the diagram to estimate the height of the tree. 

• 63 ft
• 65 ft
• 74 ft
• 87 ft

Tags

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

Solve for the misssing distance

• 18.9
• 19.5
• 47
• 27.5

Tags

CCSS.HSA.CED.A.1

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

CCSS.HSG.SRT.D.11