Circle O has a radius of 10, how do you find the length of an arc subtended by a central angle measuring 1.5 radians?

2 Answers
May 15, 2018

I tried this:

Explanation:

We can use the fact that the arc length #s# is related to the radius #r# and angle #theta# as:

#s=rtheta#

in your case:

#s=10*1.5=15# units

May 15, 2018

#"arc length "=15" cm"#

Explanation:

#• " length of arc "="circumference "xx"fraction of circle"#

#color(white)(xxxxxxxxxxxx)=cancel(2pir)xx1.5/cancel(2pi)#

#color(white)(xxxxxxxxxxxx)=10xx1.5=15" cm"#