find l when theta is 60 degrees and r is 4.5cm??

You have to be more specific.

What is l ?

hmmm. hard to say what you want, but

(4.5,60°) translates to 4.5cis60° = 4.5*√3/2 + 4.5*1/2 i = 3.90+2.25i

Can you be more specific

To find the value of "l" when θ (theta) is 60 degrees and r (radius) is 4.5 cm, we can use the formula for the length of an arc:

l = θr

In this case, θ is 60 degrees and r is 4.5 cm.

So, to find "l," we can plug these values into the formula:

l = (60 degrees) * (4.5 cm)

Let's calculate it:

l = 60 * 4.5
l = 270 cm

Therefore, when θ is 60 degrees and r is 4.5 cm, the value of "l" (the length of the arc) is 270 cm.