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Let the radius of the cone = 'r' cm Then, volume of the cone = (1/3) x π x r2 x 7 = (1/3) x (22/7) x r2 x 7 = 733(1/3) Or, (22r2/3) = (2200/3) So, r2 = (2200/3) ÷ (22/3) = 100 So, r = 10 (Since, radius of the cone cannot be negative therefore we can discard the negative root) Therefore, diameter of the same cone = 2r = 2 x 10 = 20 cm
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I). p 2 – 5p – 126 = 0
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28, 52, 84, 124, 172, ?.
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A triangle has sides 7 cm, 24 cm, and 25 cm. A circle is inscribed in the triangle. What is the area of the triangle not covered by the circle?