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Use a calculator to determine ụpto two d...

Use a calculator to determine ụpto two decimal places, the perimeter and the area of the circle in the picture.
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  12. In all the pictures given below, 'O' is the centre of the circle and '...

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  14. In each problem below, draw a circle and a chord to divide it into two...

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  15. A rod bent:into an angle is placed with its comer at the centre of a c...

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  18. In the picture, 'A B' and 'C D' are mutually perpendicular chords of t...

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