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2 years ago

PLLLLEEEAAAASSSSSEEEE HELP!

Mathematics

1 answer:

Lana71 [14]2 years ago

8 0

Answer:

see explanation

Step-by-step explanation:

The length of the arc is calculated as

arc = circumference of circle × fraction of circle

= 2πr × $\frac{90}{360}$ ← r = 1

= 2π × $\frac{1}{4}$ = $\frac{\pi }{2}$ ≈ $\frac{3.14}{2}$ = 1.57

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