# Answer to Question #34788 in Trigonometry for Kristen Woods

Question #34788

Polar coordinates of Q are (26, 80). Which is x-axis of this point in rectangular system?

A. 4.51

B. 4.25

C. 5.21

D. 5.41

A. 4.51

B. 4.25

C. 5.21

D. 5.41

Expert's answer

As we know, rectangular and polar coordinates are related by the following formulas:

x=r cos(fi)

y=r sin(fi)

So, we obtain x=26*cos(80)=4.51 which is A.

x=r cos(fi)

y=r sin(fi)

So, we obtain x=26*cos(80)=4.51 which is A.

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