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06-03-2021
Physics

contestada

In terms of π, what is the length of an arc
which subtends an angle of 30° at the centre
of a circle of radius 3 cm?

Respuesta :

06-03-2021

Answer:

Since 2 pi = 360 deg and pi equals 180 deg, 30 deg = pi / 6.

S = theta * R = pi / 6 * 3 cm = 1.57 cm

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