Finding a Missing Side Using Trigonometric Ratios

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

Solve for x.

• 50.7

• 50.1

• 60.7

• 61.0

Solve for x. Round to the nearest tenth.

• 7.5

• 34.1

• 14.1

• 30.1

Find the length of side w.

• 21.4 cm

• 18.0 cm

• 36.5 cm

• 43.6 cm

Find the length of the missing side. Round your answer to the nearest 10th.

Mathematical Equivalence

OFF

Use the Trig Toolkit to find the value of x in the given diagram. Click and drag your answer into the blank space below.

The value of x is (a)   .

• 21

• 33

• 12

What is the value of y?

Mathematical Equivalence

ON

Find the missing side. Round to the nearest tenth place.

Mathematical Equivalence

ON

Find x round to the nearest tenth.

Mathematical Equivalence

ON

Find the missing side.

• 11.6

• 93.4

• 31.9

• 1.1