Question

Given r=8 and 0 =1.85pi, find the Cartesian coordinates. a.(7.13,-3.63) b.(7.08,-3.67) c.(-7.08,3.67)d.(-7.80,-3.67)

Answer 1

Answer:

Step-by-step explanation:

polar coordinates  =  R ( 8 ) , θ = 1.85π ( 1.85 x 180 = 333° )

x - coordinate  = r cosθ = 8 cos333

= 7.13

Y-coordinate = r sinθ = 8 sin 333

= - 3.63.

(7.13 , - 3.63 )

Option a is the answer.