Question

Medal award! Find the arc length along a circle of diameter 9.5 meters which subtends an angle of 1.9 radians

Answer 1

diameter=9.5 m
radius r=?

Answer 2

4.75

Answer 3

correct.
\[\theta=\frac{ l }{ r },l=r \times \theta \]
where l= length of arc
r=radius if circle
\[\theta=angle~of~arc(in~radians)\]

Answer 4

can you solve?

Answer 5

so I have 4.75*9.5?

Answer 6

4.75*1.9

Answer 7

correct.

Answer 8

so I would just need to input 1.9pi*4.75? Because I tried that and it mentioned that it was incorrect

Answer 9

4.75*1.9=9.025 m

Answer 10

thanks so much :)

Answer 11

why are you writing pi ?
angle is already given in radians.

Answer 12

when angle is given in degrees then you need to change it in radians.

Answer 13

yep :) I messed up but the 9.025 is correct! Thanks so much

Answer 14

yw