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Usimov [2.4K]
3 years ago
11

Find the arc length of the partial circle.

Mathematics
1 answer:
Serga [27]3 years ago
5 0

Known :

r = 5 cm

θ = 360° - 90° = 270°

Asked :

Arc length of the partial circle = ...?

Answer :

Arc length

=  \frac{θ}{360}  \times 2\pi r \\  =  \frac{270}{360}  \times 2 \times 3.14  \times 5 \\  =  \frac{3}{4}  \times 31.4 \\  =  \frac{3}{4}  \times  \frac{314}{10}  \\  =  \frac{942}{40}  \\  = 23.55 \: cm

So, the arc length of the partial circle is 23,55 cm

<em>Hope it helps and is useful</em><em> </em><em>:</em><em>)</em>

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