Question

diameter of a circle is 105 cm find its circumference​

Answer 1

Answer:

c=2πr

2×22/7×52.5

= 329.87

Answer 2

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• Diameter of Circle = 105 cn
• Find it's circumference.

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★ [The circumference of a circle is equal to pi times the diameter. The diameter is two times the radius, so the equation for the circumference of a circle using the radius is two times pi times the radius.]

• Circumference = 2πr
• π = 22/7
• Radius = 105/2 = 52.5 cm

Circumference:

$2 \times 52.5 \times \frac{22}{7}$

$= 2 \times \frac{525}{10} \times \frac{22}{7}$

$\boxed{\bf{330 cm}}$

(Rounded Off)

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