Question

Please help me ASAP!
Thanks :)

Answer 1

we are given

radius is 1

`r=1`

we have angle as

`\theta=(\pi)/(2)`

now, we can use arc length formula

`l=r*\theta`

where

l is arc length

theta is angle

now, we can plug value

`l=1*(\pi)/(2)`

so,

Exact form:

`l=(\pi)/(2)`............Answer

Decimal form:

`l=1.57`............Answer