Review: 7.1 Assessment

SOH CAH TOA

NOTES

Multiple Choice

Tangent ratio represent

• Opp/Hyp

• Adj/Hyp

• Opp/Adj

Multiple Choice

• A

• B

• C

• D

Multiple Choice

 Find sinA

• 32/40

• 32/24

• 24/40

• 24/32

Multiple Choice

Which Trig function do you use?

• Sine

• Cosine

• Tangent

Multiple Choice

Which Trig function do you use?

• Sine

• Cosine

• Tangent

Multiple Choice

We can use SOH-CAH-TOA for...

• Any triangle ever

• Non-right triangles only

• Right Triangles only

• Never

Multiple Choice

What is the ratio for cosine?

• H/A

• O/A

• A/H

• A/O

Multiple Choice

 Find cosA

• 30/16

• 30/34

• 30/15

• 16/34

Multiple Choice

What is the length of the opposite side?

• 8

• 15

• 17

Multiple Choice

What is the length of the adjacent side?

• 8

• 15

• 17

Multiple Choice

Sin C

Remember SOH

• 20/29

• 21/29

• 21/20

Multiple Choice

Choose the correct ratio.

• sin(37)=x/14

• cos(37)=x/14

• tan(37)=x/14

• sin(37)=14/x

Pythagorean Theorem

The more you know...

Make sure you have this memorized!

Pythagorean Theorem Formula:

• a² + b² = c²

• "a" and "b" are legs

• "c" is the hypotenuse (always opposite of the right angle)

How to Solve

1. Determine what side is missing.

2. Plug in what you know into the equation.

3. Simplify the equation.

4. Solve for the missing side.

5. If needed round to the nearest tenth!

Example 1

Finding the hypotenuse using the Pythagorean Theorem

Multiple Choice

The Pythagorean Theorem only works for ________ triangles.

• Scalene

• Obtuse

• Equilateral

• Right

Multiple Choice

The side that is missing is

• the hypotenuse

• a leg

• Nothing

• a right angle

Multiple Choice

The side that is missing is

• the hypotenuse

• a leg

• We aren't missing a side

• the right angle

Multiple Choice

Do three squares with side lengths of 6, 12, and 13 form a right triangle?

• Yes

• No

Multiple Choice

If three sides of a right triangle are 9, 40, and 41, which side is the hypotenuse?

• 9

• 40

• 41

Multiple Choice

Which sides are the legs of the triangle?

• 9 and 15

• 9 and 12

• 12 and 15

• 15

Multiple Choice

Determine the length of the missing side.

• 7

• 8

• 17

• 23

Multiple Choice

Find the value of x.

• 7

• 8

• 9

• 10

Multiple Choice

What is always the longest side in a right triangle?

• leg (a)

• leg (b)

• hypotenuse (c)

• depends on the location of the right angle

Multiple Choice

Level 2

Solve for the value of y

• 13

• 5

• 23

• 10

Multiple Choice

Level 2

Solve for the value of y

• 13

• 5

• 23

• 10

Multiple Choice

Do the segment lengths 15, 9 and, 12 form a right triangle?

• Yes

• No