Lesson 28.3

Lesson 28.3 p. 36-39

Use tangent ratio.

Compare sine, cosine, and tangent ratios.

Multiple Choice

Locate the Opposite side of angle A.

• Side c

• side b

• side a

Multiple Choice

Locate the side adjacent to Angle A excluding the hypotenuse.

• side a

• side b

• side c

Multiple Choice

What is the tangent ratio?

Multiple Choice

Find the exact answer for the variable.

• 13

• 12.2

• 12

• 1

Multiple Choice

What information do you need to use the tangent ratio?

• an angle and a side opposite and adjecent
• two sides
• one angle and the hypotenuse
• one angle and the opposite and hypotenuse

Multiple Choice

• 35/21
• 21/28
• 35/28
• 28/21

Multiple Choice

From ∠C, what side is AB?

• Adjacent
• Hypotenuse
• Opposite

Multiple Choice

What side does x represent?

• hypotenuse
• right angle
• adjacent leg

• opposite leg

Multiple Choice

What is 21?

• opposite leg

• adjacent leg

• hypotenuse

Multiple Choice

What is the adjacent leg?

• $$91$$

• $$x$$

• $$29$$

Multiple Choice

What is side x?

• opposite leg

• adjacent leg

• hypotenuse

Multiple Choice

This symbol means ...

• theta- represents an unknown angle

• zero- it means zero

• adjacent side

• opposite side

Multiple Choice

Would you use tangent or inverse tangent?

• tangent

• inverse tangent (tan^-1)

Multiple Choice

Would you use tangent or inverse tangent?

• tangent

• inverse tangent (tan^-1)

Multiple Choice

To solve for side x, would you use tangent or inverse tangent?

• tangent

• inverse tangent (tan^-1)

Multiple Choice

To solve for x, would you use tangent or inverse tangent?

• tangent

• inverse tangent (tan^-1)

Multiple Choice

Which leg is the opposite leg?

• $$27$$

• $$38$$

Multiple Choice

Which leg is the adjacent leg?

• $$27$$

• $$38$$

Multiple Choice

To solve the missing angle, would you use tangent or inverse tangent?

• tangent

• inverse tangent (tan^-1)

Multiple Choice

If you are given the opposite side and hypotenuse, which trig function should you use?

• sine
• cosine
• tangent

Multiple Choice

If you are given the hypotenuse and an adjacent side, which trig function should you use?

• sine
• cosine
• tangent

Multiple Choice

Which trigonometric ratio is correct?

• sinA= opp/adj
• cosA= opp/hyp
• tanA= opp/adj
• sinA= adj/opp

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Find the missing measurements.

The tallest masonry building in
the world is City Hall in
Philadelphia (as of April 2019). If
you’re standing on the street
1,300 feet from the bottom of the
building, you have to look up at a
23 degree angle to see the top.
How tall is the building? Explain
or show your reasoning.