2 years ago

What is the circumference

1 answer:

5 0

Answer: 69.43 cm

Step-by-step explanation:

Given: Arc length (JK) = 40.5 cm

Central angle ∠ JLK = 210°

Arc length = $\dfrac{x}{360}\times\text{Circumference}$

$\Rightarrow\ 40.5=\dfrac{210}{360}\times\text{Circumference}\\\\\Rightarrow \text{Circumference} =40.5\times\dfrac{360}{210}\\\\\approx69.43\ cm$

Hence, Circumference = 69.43 cm

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