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Prime factors of 84 = 2 × 2 × 3 × 7
Prime factors of 630 = 2 × 3 × 3 × 5 × 7
HCF = 2 × 3 × 7 = 42
If the radius of a circle is 15 cm, then which of the following is true regarding the length of the chord (L)?
The area of a square is 3,600 cm². Find the area of a circle whose radius is (2/3)ᵗʰ of the side of the square. (Use π = 3.14)
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If a wheel covers a distance of 2200 cm in 7 rotations, then the diameter of the wheel is?
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One chord of a circle is given as 18.5 cm. Then the radius (r) of the circle must be:
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