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Area of Oblique Triangles with SAS and Heron's Formula

Rated 4.88 out of 5, based on 8 reviews
4.9 (8 ratings)
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Joan Kessler
5.8k Followers
Grade Levels
10th - 12th, Higher Education
Standards
Formats Included
  • PDF
Pages
12 pages
$4.00
$4.00
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Joan Kessler
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Easel Activity Included
This resource includes a ready-to-use interactive activity students can complete on any device.  Easel by TPT is free to use! Learn more.
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Description

This Trigonometry Finding the Area of Oblique Triangles SAS and Heron's Formula resource will engage and challenge your students.


Included

  • Guided Notes on the SAS method and Heron's method for finding the area of oblique triangles. Each page has completed examples and problems for students to complete.
  • 10 additional problems for them to complete. Some problems require the Law of Sines to complete and some problems are applications. I have set the format so that you can use these as a worksheet or cut them and use as Task or Station Cards.
  • Fully typed solutions
  • A poster on the topic as well as an organizer for students to include in their notebooks from the Trigonometry Bundle of Graphic Organizers plus Posters.

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You may also like:

★ Bundle of Foldables and Interactive Notebook pages for Trig and PreCalculus

★ Bundle of Analytic Trigonometry

★ Law of Sines Fun Notes - complete notes in a fun format

★ Law of Cosines Fun Notes- complete notes in a fun format

★ Law of Sines Task Cards QR

★ Law of Sines PowerPoint, HW Guided Notes, and more

★ Trig Identities and Formulas Flip Book
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If you have any questions or comments please contact me by email me at: joankessler@distancemath.com.


LICENSING TERMS: The purchase of a license for this resource is for use by one teacher only for his or her students only. No part of this resource is to be shared with colleagues or used by an entire department, school, or district without purchasing the proper number of licenses. Please respect my hard work and do not share.

COPYRIGHT TERMS: ©2018 Joan Kessler (joansworldofmath.com™). This resource may not be uploaded to the internet in any form, including classroom/personal websites or network drives, unless the site is password protected and can only be accessed by your students.

Total Pages
12 pages
Answer Key
Included
Teaching Duration
N/A
Last updated Apr 13th, 2021
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Standards

to see state-specific standards (only available in the US).
Derive the formula 𝐴 = 1/2 𝘢𝘣 sin(𝐶) for the area of a triangle by drawing an auxiliary line from a vertex perpendicular to the opposite side.
Understand and apply the Law of Sines and the Law of Cosines to find unknown measurements in right and non-right triangles (e.g., surveying problems, resultant forces).

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