Using a Right Triangle

Discussion in 'Geometry and Trigonometry' started by nycmathguy, Nov 4, 2021.

  1. nycmathguy

    nycmathguy

    Joined:
    Jun 27, 2021
    Messages:
    4,164
    Likes Received:
    406
    Section 4.3
    20211103_194902.jpg

    Part (a)

    Side y is opposite angle theta.

    Part (b)

    Side x is opposite 90° - theta.

    Part (c)

    sin (theta) = cos(90° - theta) because they are co-functions.

    Yes?

    Here we end with Section 4.3.
     
    nycmathguy, Nov 4, 2021
    #1
    1. Advertisements

  2. nycmathguy

    MathLover1

    Joined:
    Jun 27, 2021
    Messages:
    2,292
    Likes Received:
    2,227
    yes

    part c: In other words, the sine of an angle equals the cosine of its complement.
     
    MathLover1, Nov 4, 2021
    #2
    nycmathguy likes this.
    1. Advertisements

  3. nycmathguy

    nycmathguy

    Joined:
    Jun 27, 2021
    Messages:
    4,164
    Likes Received:
    406
    Perfect.
     
    nycmathguy, Nov 4, 2021
    #3
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.