Using Trigonometry to Solve for Missing Sides

Presentation

•

Mathematics

•

8th - 12th Grade

•

Practice Problem

•

Medium

•

Trigonometry

Standards-aligned

Pam Darden

Used 10+ times

FREE Resource

8 Slides • 6 Questions

Using Trigonometry to Solve for Missing Sides

Applying Trig Functions-Day 1

Using Trig to Find the Length of a Missing Side

STEP 1:

Label your Sides: Opposite, Adjacent, Hypotenuse

*Highlight your reference angle.

* Label Opposite, Adjacent, Hypotenuse (You can use O, A, and H for short!)

Decide:

Which Side Do I Know?

Which Side am I Solving For?

You have a measure for the hypotenuse. You want to solve for the adjacent side. Which trig function uses adjacent and hypotenuse? cos!

Set Up Your Equation!

Solve the equation for x.

You're ALMOST done!

Calculator Time!

A. Click on the wrench in the upper right corner. Click on Degrees. SUPER IMPORTANT!

B. Click on Keyboard icon- then FUNCTIONS, then TRIG.

C. Enter trig expression.

D. Round to the nearest tenth (one decimal place).

Multiple Choice

Which trig function will you need to use to solve for x?

sin

cos

tan

Multiple Choice

Which equation will correctly solve for x?

$\tan\left(78\right)=\frac{18}{x}$

$\cos\left(78\right)=\frac{x}{18}$

$\tan\left(78\right)=\frac{x}{18}$

$\cos\left(78\right)=\frac{18}{x}$

Multiple Choice

Find the value of x. Round to the nearest tenth.

3.7

3.8

84.7

86.6

Multiple Choice

Which trig function will be used to solve for x?

sin

cos

tan

Multiple Choice

Which equation should be used to correctly solve for x?

$\sin\left(52\right)=\frac{38}{x}$

$\cos\left(52\right)=\frac{38}{x}$

$\sin\left(52\right)=\frac{x}{38}$

$\cos\left(52\right)=\frac{x}{38}$

Multiple Choice

Find the value of x.

23.4

29.9

48.2

61.7

Using Trigonometry to Solve for Missing Sides

Applying Trig Functions-Day 1

Show answer

Auto Play

Slide 1 / 14

SLIDE

Similar Resources on Wayground

10 questions

Solving Exponential Function Problems

Presentation

•

8th Grade - University

12 questions

Alg. 1 10-5

Presentation

•

9th - 12th Grade

10 questions

Linear Equations Review

Presentation

•

9th - 11th Grade

8 questions

Midpoint and Distance Formulas

Presentation

•

9th - 11th Grade

8 questions

Factoring Trinomials (a>1) CW

Presentation

•

8th - 12th Grade

10 questions

Solving Exponential & Logarithmic Equations

Presentation

•

9th - 12th Grade

10 questions

Solving Rational Expressions

Presentation

•

9th - 12th Grade

10 questions

Circumscribed Angles and Tangent

Presentation

•

9th - 12th Grade

Popular Resources on Wayground

10 questions

HCS SCI 03 Summer School Review 4

Quiz

•

3rd Grade

11 questions

HSMS - Standard Response Protocol

Quiz

•

6th - 8th Grade

16 questions

1.1-1.2 Quiz Review

Quiz

•

9th - 12th Grade

12 questions

Exponent Expressions

Quiz

•

6th Grade

20 questions

Adding and Subtracting Integers

Quiz

•

6th - 7th Grade

11 questions

Northeast States

Quiz

•

3rd - 4th Grade

10 questions

Characterization

Quiz

•

3rd - 7th Grade

10 questions

Common Denominators

Quiz

•

5th Grade

Discover more resources for Mathematics

16 questions

1.1-1.2 Quiz Review

Quiz

•

9th - 12th Grade

11 questions

Negative Exponents

Quiz

•

7th - 8th Grade