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Circumference of a Circle

Distance betw...

Question

Distance between compass pointer and pencil to trace a circle of diameter 24 cm should be

A

8 cm

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B

12 cm

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C

18 cm

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D

24 cm

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Solution

The correct option is B 12 cm
The diameter is equal to twice the measure of the radius (d=2r).

Since, the pointer of the compass should be at the distance of radius of the circle.

∴ The distance between pointer and the pencil = 12 cm

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Similar questions

Q. What should be the distance between the compass needle and the pencil tip to construct a circle of radius 6 cm?

The steps to draw two concentric circles of

given radius (r_{1}) = 6 cm and diameter

(d_{2}) = 20 cm are:

Step 1 : Mark a point 'O' as the centre.

Step 2 : Measure the distance between the pointer and the pencil as 6 cm for the first circle.

Step 3 : Place the pointer at 'O' and rotate the compass to trace the first circle.

Step 4 : ?

Step 5 : Again, place the pointer at 'O' and rotate the compass to trace the second circle.

Choose from the given options the missing step.

Q. While constructing a circle with a compass, the distance between the compass needle and the tip of the pencil is the radius of the circle.

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