02-04-2021
Mathematics

contestada

A circle with circumference 20 has an arc with a 72 degree central angle. What is the length of the arc?

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karkismriti176 karkismriti176

07-04-2021

Answer:

4

Step-by-step explanation:

circumference = 2πr

or, 20 = 2π r

or, π r = 10

or, r= 10/π

72 ° = 2π/5

length of arc = r∅ = 10/π × 2π/5

= 4

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