Question

What is the circumference

Answer 1

Answer: 69.43 cm

Explanation:

Given: Arc length (JK) = 40.5 cm

Central angle ∠ JLK = 210°

Arc length =
`(x)/(360)*\text{Circumference}`

`\Rightarrow\ 40.5=(210)/(360)*\text{Circumference}\\\\\Rightarrow \text{Circumference} =40.5*(360)/(210)\\\\\approx69.43\ cm`

Hence, Circumference = 69.43 cm