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Mathematics 21 Online
OpenStudy (anonymous):

Help.

OpenStudy (anonymous):

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (anonymous):

So what I thought I should have done was just subtract 90 by 54 and get your answer...but that wasn't correct.

jimthompson5910 (jim_thompson5910):

What is angle IKL ?

OpenStudy (anonymous):

126

OpenStudy (anonymous):

I just subtracted 180- 54 because that line adds up to 180.

jimthompson5910 (jim_thompson5910):

Notice how triangle IKL is an isosceles triangle. So what does that tell us about the base angles?

OpenStudy (anonymous):

That they are congruent?

jimthompson5910 (jim_thompson5910):

So the base angles are x degrees, the vertex angle is 126 degrees

jimthompson5910 (jim_thompson5910):

the three angles must add to 180 degrees, so, x+x+126 = 180 x = ?

OpenStudy (anonymous):

27, would be the answer. so all triangles add up to 180 correct.

OpenStudy (anonymous):

So you would do the same to the other side and have y=63.

jimthompson5910 (jim_thompson5910):

you got both correct

OpenStudy (anonymous):

Yes thank you. So I might have more questions in a couple minutes would it be okay to tag you?

jimthompson5910 (jim_thompson5910):

sure I can do a few more

OpenStudy (anonymous):

Thank you

OpenStudy (anonymous):

OpenStudy (anonymous):

So I know that with a 30-60-90 special right triangle. this is how it looks.|dw:1407107718395:dw|

OpenStudy (anonymous):

BUt how do you solve it when you plug everything up??

OpenStudy (anonymous):

|dw:1407107848019:dw|

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