Math Is Fun Forum

Andre3Thousand

Guest

help me pleaseee

I have a huge test tomorrow and I know that I know this thing but I'm drawing a blank..
            5cm
    I __________  J
    |60         71 =
    |             =
12 |           =
cm|         =
    |       =  y
    | 49 =
    |  =
    |=
    K
I cannot remember how to find Y help please

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: help me pleaseee

Hi;

This is what your picture looks like on my browser.

I can not understand it.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,643

Re: help me pleaseee

hi Andre3Thousand

Welcome to the forum.

Is this what you were trying to draw?

As you know 5 out of the 6 measurements in this triangle, there are many ways you could do this.  I think the simplest is to use the sine rule:

Bob

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob