Find the lengths of RS and QS.

Question

anonymous · Answer

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anonymous · Answer

Use the $Soh Cah Toa$ rule to help you. You are given an angle and the side opposite the angle, can you figure out how to work out the rest?

anonymous · Answer

i don't understand how i suppose to find the answer

anonymous · Answer

Soh Cah Toa..means:
Sin=Opposite/Hypotenuse
Cos=Adjacent/Hypotenuse
Tan=Opposite/Adjacent

anonymous · Answer

You have the angle and the length of the side opposite the angle. So you can work out either the adjacent side or the hypotenuse using $SohCahToa$.

Say we want to find QS. This forms the hypotenuse, and we have the opposite side (QR), so we use $sin (\theta)= QR/QS$. I.e. $sin(30)=7/QS \therefore QS = 7/sin(30) $

anonymous · Answer

By 'Opposite', 'Adjacent'..we mean the sides that are opposite or adjacent to the angle..

anonymous · Answer

A)
RS = 14, QS = 7
	2
B)
RS = 14, QS = 7
	3
C)
RS = 7
	3
, QS = 14	

D)
RS = 7
	2
, QS = 14

anonymous · Answer

any help

anonymous · Answer

Read the above and it will help ;)

anonymous · Answer

b is the answer