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Mathematics 9 Online
OpenStudy (barterrr):

I need help ASAP!!! ( i don't really remember geometry) Question 1.) What is the relationship between the sine and cosine of complementary angles? How do we know it is true? Question 2.) A source of last light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at pointsB and C, as shown below. What is the distance between the walls?

OpenStudy (barterrr):

|dw:1465237968171:dw|

OpenStudy (barterrr):

@ganeshie8

OpenStudy (robtobey2):

Triangle B: wall to laser source is 22 Cos(60 deg) Triangle 40m : wall to laser source is 40 Cot(45 deg)

OpenStudy (sshayer):

|dw:1465255987968:dw|

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