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I need some help on these two questions.
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I need some help on these two questions.

I need some help on these two questions.-example-1
User Matthew Kwong
by
4.4k points

1 Answer

6 votes

Answer:

see explanation

Explanation:

The length of the arcs are calculated as

arc = circumference of circle × fraction of circle

(13)

arc = 2πr ×
(72)/(360)

= 2π × 25 ×
(1)/(5) = 10π units

(14)

arc = 2π × 2 ×
(270)/(360)

= 4π ×
(3)/(4) = 3π units

User ISlimani
by
4.7k points
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