With the point O as the centre, draw two circles of radius 2.5 cm and 4 cm with

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With the point O as the centre, draw two circles of radius 2.5 cm and 4 cm with compass and ruler. What are these circles called? [2 MARKS]

Options:

Answer: Option A
:

Construction: 1 Mark
Answer: 1 Mark
Steps of construction:
1. Stretch the compass to the length of 2.5 cm measuring with a ruler. Then draw a circle with the centre as O.
2. Again stretch the compass to the length of 4 cm measuring with a ruler. Then draw a circle with the same centre O as shown below.

These are known as concentric circles as they have the same centre but different radius.

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