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Mathematics 8 Online
OpenStudy (ayyookyndall):

Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale.

OpenStudy (ayyookyndall):

OpenStudy (ayyookyndall):

@inowalst @AlexandervonHumboldt2

OpenStudy (inowalst):

What kind of triangle is it? Tell me that..

OpenStudy (ayyookyndall):

A right triangle. @inowalst

OpenStudy (bee_see):

AAS. We know two angles and one side (which is not between the angle). Use the Law of Sines

OpenStudy (ayyookyndall):

Actually I was going to use cos

OpenStudy (ayyookyndall):

@jim_thompson5910 I can use cos right?

OpenStudy (ayyookyndall):

cos |dw:1425602181047:dw|

jimthompson5910 (jim_thompson5910):

yeah, you are correct

jimthompson5910 (jim_thompson5910):

now solve for x

OpenStudy (ayyookyndall):

11 cos (22) = x

OpenStudy (ayyookyndall):

x = 10.2

jimthompson5910 (jim_thompson5910):

I'm getting 10.1990224002347 if you round that to 1 decimal place, you get 10.2, so it looks good

OpenStudy (ayyookyndall):

Okay. Thank you!! Did I do my steps correctly?

jimthompson5910 (jim_thompson5910):

yes you did

OpenStudy (ayyookyndall):

Okay, thank you again. :)

jimthompson5910 (jim_thompson5910):

np

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