Ask Experts Questions for FREE Help !
Ask
    rab123's Avatar
    rab123 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 26, 2007, 05:38 PM
    Trignometry assignment
    How long is the base of an isosceles triangle if the equal sides are 20 cm long and the base angles measure 52 degrees
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
    		  
    #2

    Apr 26, 2007, 05:53 PM
    40cos(52) or 40sin(38)

    Do you see why?
    carolinagirl_kelsey's Avatar
    carolinagirl_kelsey Posts: 9, Reputation: 2
    New Member
    		  
    #3

    Apr 26, 2007, 06:00 PM
    If the base equals "b" and the two congruent sides equal "s":

    A perpendicular bisector of the base equals "b/2" and creates two congruent right triangles.

    The third angle equals 76, and with a perpendicular bisector equals 38 in one of the congruent right triangles.

    -So- sin38= (b/2)/20

    Solve for "b" to find length of the base.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search


Check out some similar questions!

Assignment Help [ 5 Answers ]

Hi, I'm currently studying Forensic Science at College in England, and I was wondering if you could give me some pointers on an assignment I have as we have had very little guidance on it. The task is to review the types of energy (I believe this means kinetic, potential etc.), their...

Assignment [ 1 Answers ]

Hi I have this english assignment and I need to know a law about make-up I'm not so sure if there is one but maybe some of the other members could clarrify this My question really is there any legal limits on make-up? Thank you if you reply I'm hoping for an A+:)

View more questions Search