Finding Missing Sides and Angles Using Trig Ratios

Finding Missing Sides Using Trig Ratios

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Multiple Choice

Which trig ratio would you use to solve for x?

• Sine

• Cosine

• Tangent

Using Cos, set up a proportion and solve for x.

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Set up a proportion and solve for y.

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Solve the following triangle for x and y.

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What are 2 ways that could be used to solve the problem?

Using one of the proportions solve for x:

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Fill in the Blanks

Multiple Choice

Choose the correct ratio.

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

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Solve the Triangle

To solve the triangle, find all missing sides and angles measrues

Multiple Choice

Which trig function will be used to find the missing angle?

• sin

• cos-1

• tan-1

• sin-1

Multiple Choice

Choose the correct ratio.

• sin^-1(9/20)

• cos^-1(9/20)

• tan^-1(9/20)

• cos^-1(20/9)

Multiple Choice

Find the measure of the indicated angle (?) round to the nearest whole number.

• 33°
• 49°
• 39°
• 41°

Multiple Choice

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4
• 55.2
• 20.15
• 19.4

Multiple Choice

Solve for the missing angle to the nearest degree.

• 32°

• 44°

• 61°

• 50°

Solve the triangle.

Solve the triangle.