मराठी

Find in terms of π, the length of the arc that subtends an angle of 30° at the centre of a circle of radius 4 cm.

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प्रश्न

Find in terms of π, the length of the arc that subtends an angle of 30° at the centre of a circle of radius 4 cm.

बेरीज
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उत्तर

Length of arc =`theta/360°`× 2𝜋𝑟

Radius = r = 4 cm

𝜃 = angle subtended at centre = 30°

Arc length =`30^@/360^@`× 2 × (7)

=`(2pi)/3`cm

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पाठ 13: Areas Related to Circles - EXERCISE 13.2 [पृष्ठ १३.२०]

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आर.डी. शर्मा Mathematics [English] Class 10
पाठ 13 Areas Related to Circles
EXERCISE 13.2 | Q 1. | पृष्ठ १३.२०
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