Question

Find the length of arc ED

Answer 1

Answer:

ED = 5π/6

Step-by-step explanation:

First convert angles into radians by using formula 1° = π/180 rad

So, 50° becomes 5π/18.

Now using formula,

angle = length of arc / radius of circle

we get,

5π/18 = length of arc / 3

Hence , length of arc = 5π/6

Answer 2

Answer:

ED ≈ 2.62 in

Step-by-step explanation:

The length of the arc ED is calculated as

ED = circumference × fraction of circle

     = 2πr × $\frac{50}{360}$

     = 2π × 3 × $\frac{5}{36}$

     = 6π × $\frac{5}{36}$

     = $\frac{5\pi }{6}$ ≈ 2.62 in ( to 2 dec. places )