Question

Find the arc length of the partial circle.

Answer in terms of π or use 3.14, and enter your answer as a decimal.

Answer 1

• r=8
• Angle=π/2

Arc length

• L=r
  `\theta`
• L=8(π/2)
• L=4π
• L=12.6units

Answer 2

`\qquad\qquad\huge\underline{{\sf Answer}}♨`

As we know :

Length of arc = Radius × Angle made by Arc at center [ in radians ]

`\qquad \tt \dashrightarrow \: arc = radius * angle \: \: ( in \: \: rad)`

`\qquad \tt \dashrightarrow \: arc = 8 * ( \pi)/(2)`

`\qquad \tt \dashrightarrow \: arc = 4 \pi \frac{ }{} \: \: units`

or

`\qquad \tt \dashrightarrow \: arc = 4 * 3.14 = 12.56 \: \: units\frac{ }{} \: \:`