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# I REALLY NEED HELP

0
665
1

What is the value of r?

Enter your answer in the box.

Round your final answer to the nearest whole number.

r = __ units Mar 22, 2018

### Best Answer

#1
+3

sin of an angle  =  length of side opposite that angle / length of hypotenuse

So in this case...

sin 53.1°  =  4 / r       Multiply both sides of the equation by  r .

r sin 53.1°  =  4         Divide both sides of the equation by  sin 53.1°

r  =  4 / sin 53.1°       Plug this into a calculator to get...

r  ≈  5

Mar 22, 2018

### 1+0 Answers

#1
+3
Best Answer

sin of an angle  =  length of side opposite that angle / length of hypotenuse

So in this case...

sin 53.1°  =  4 / r       Multiply both sides of the equation by  r .

r sin 53.1°  =  4         Divide both sides of the equation by  sin 53.1°

r  =  4 / sin 53.1°       Plug this into a calculator to get...

r  ≈  5

hectictar Mar 22, 2018