Download presentation

Presentation is loading. Please wait.

1
LAW OF COSINES

2
**Example 1: Solve the following….**

B 14 ft 8 ft A 19 ft C

3
**Example 2: Solve the following….**

5 cm 8 cm 12 cm

4
**Example 3: Solve the following….**

15 cm 115˚ 10 cm

5
**Example 4: Solve the following….**

18 ft 46.5˚ 10.5 ft

6
Solve the following…. 2.3 mi

7
Another…. 211ft

8
Heron’s Formula

9
**Ex 1. Find the area of the following triangle.**

a = 43m b = 53m c = 72m

10
**Ex 2. Find the Area of the Triangle**

a = b = 52 m c = 28 m 361.8 m2

11
Solve the following: 17,452 ft2

12
One more…. Land in downtown Columbia is valued at $20 a square foot. What is the value of a triangular lot with sides of lengths 112, 148, and 190 feet? $165,554

13
**Determine whether the Law of Sines or the Law of Cosines is needed to solve each of the triangles.**

a.) A = 15o, B = 58o, c = 94 b.) a = 96, b = 43, A = 105o c.) a = 24, b = 16, c = 29 d.) a = 15, c = 42, B = 49o Law of Sines Law of Sines Law of Cosines Law of Cosines

14
**BRING YOUR BOOK TOMORROW!**

HOMEWORK Pg. 423 #’s 1 – 33 odd BRING YOUR BOOK TOMORROW!

15
Partner Problems pg #’s 2, 10, 18, 24, 28, 32, 34, 39, 41, 48 *Quiz Tomorrow

Similar presentations

Presentation is loading. Please wait....

OK

Factoring Quadratics — ax² + bx + c Topic 6.6.2.

Factoring Quadratics — ax² + bx + c Topic 6.6.2.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To ensure the functioning of the site, we use **cookies**. We share information about your activities on the site with our partners and Google partners: social networks and companies engaged in advertising and web analytics. For more information, see the Privacy Policy and Google Privacy & Terms.
Your consent to our cookies if you continue to use this website.

Ads by Google

Ppt on solar energy pdf Ppt on game theory john Ppt on non communicable diseases Ppt on green building technology Ppt on marketing management on jeans Ppt on group life insurance Ppt on mystery stories of india Ppt on eye os online Ppt on power purchase agreement Ppt on spiritual leadership in the home