Medal + Fan Help!
Find the rectangular coordinates of the point with the polar coordinates (8, 3/2pi)
How do you do this?

Question

Medal + Fan Help!
Find the rectangular coordinates of the point with the polar coordinates (8, 3/2pi)
How do you do this?

ddcamp · Answer

polar (r, theta) to rectangular (x,y):
x = radius×cos(theta)
y = radius×sin(theta)

anonymous · Answer

can you walk me through it? I'm new to polar cord. @DDCamp

ddcamp · Answer

Yeah, no problem.

anonymous · Answer

would it be (0,-8)?

ddcamp · Answer

Normal (rectangular) coordinates give you a length along 2 axis (x and y):
|dw:1378434545000:dw|

But when you're given a polar coordinate, you have two parts, the radius from the center (r) and the angle (theta):
|dw:1378434622209:dw|