[1 Mark Question Answer]

Question 11 Mark

Describe:

The locus of points at distances greater than or equal to 35 mm from a given point.

Answer

The locus is the space outside and circumference of the circle with a radius of 35 mm and the centre is the given fixed point

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Question 21 Mark

Describe:

The locus of points at distances less than or equal to 2.5 cm from a given point.

Answer

The locus is the space inside and circumference of the circle with a radius of 2.5 cm and the centre is the given fixed point.

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Question 31 Mark

Describe:

The locus of points at distances greater than 4 cm from a given point.

Answer

The locus is the space outside of the circle whose radius is 4 cm and centre is the fixed point which is given.

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Question 41 Mark

Describe:

The locus of points at distances less than 3cm from a given point.

Answer

The locus is the space inside of the circle whose radius is 3 cm and the centre is the fixed point which is given.

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Question 51 Mark

The speed of sound is 332 metres per second. A gun is fired. Describe the locus of all the people on the earth’s surface, who hear the sound exactly one second later.

Answer

The locus of all the people on Earth's surface is the circumference of a circle whose radius is 332 m and centre is the point where the gun is fired.

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Question 61 Mark

Describe the locus for questions 1 to 13 given below:

The locus of a point in space, which is always at a distance of 4cm from a fixed point.

Answer

The locus of a point in space is the surface of the sphere whose centre is the fixed point and radius equal to 4 cm.

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Mathematics [1 Mark Question Answer]

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