Finding a Missing Side Using Trigonometric Ratios

Find the length of the missing side x...

Round your answer to 1 decimal place.

• 8.7 cm

• 10.2 cm

• 12.3 cm

• 8.6 cm

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

Find x round to the nearest tenth.

• 46.1

• 4.9

• 16.4

• 26.9

Which is the correct set up to solve for x?

• sin 72 = 6 / x

• cos 72 = 6 / x

• tan 72 = 6 / x

Choose the correct set-up to solve for x.

Saul 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

Solve for x. Round to the nearest tenth.

• 103.5

• 4.7

• 55.0

• 23.4

What is the length of side x?

• 6.57 cm

• 7 cm

• 7.44 cm

• 26.33 cm

Solve for the missing angle

• 50.2

• 93.1

• 12.6

• 42.2

Find the m∠ B

• m∠ B = 23°

• m∠ B = 26°

• m∠ B = 12°

• m∠ B = 32°