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Mathematics 19 Online
OpenStudy (anonymous):

Find x.

OpenStudy (anonymous):

wait i have to draw the triangle

OpenStudy (anonymous):

|dw:1384716215550:dw|

OpenStudy (solomonzelman):

Oh, you can see that your triangle is a 45-45-90 triangle.

OpenStudy (anonymous):

options for the answer are: 4 times the square root of 3 4 times the square root of 2 8 4

OpenStudy (anonymous):

ohhhh

OpenStudy (anonymous):

now it makes sense

OpenStudy (solomonzelman):

Do you see that your shape is a "45-45-90" triangle?

OpenStudy (anonymous):

yes

OpenStudy (solomonzelman):

|dw:1384802677363:dw| THIS the the rule.

OpenStudy (solomonzelman):

you have a leg of 4, so the x=?

OpenStudy (anonymous):

4 square root of 2?

OpenStudy (solomonzelman):

Yes!

OpenStudy (anonymous):

thank you! and also ... Which of the following is not a Pythagorean triple? 8, 15, 18 7, 24, 25 3, 4, 5 5, 12, 13

OpenStudy (solomonzelman):

Do you know what a pythagorean triple is?

OpenStudy (anonymous):

not really

OpenStudy (solomonzelman):

Well lets take a right triangle.|dw:1384803074466:dw|

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