The shape of a pencil with one end sharpened is the combination of a and a _____.
WBBSE
Class X
Mathematics
Real Life Problems Related To Different Solid Object
01 Mark
2023
Cone and Cylinder
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Find the ratio of the volumes of a solid right circular cylinder and a solid...
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Volume of circular cylinder = πr²h or, Volume of cone = πr²h...
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The radius of a right circular cylinder and a hemisphere is equal and their volumes...
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(b) 50% Explanation: Volume of a cylinder = πr²h Volume of a...
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If the height and base area of a solid hemisphere and a solid cylinder are...
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(b) 1 : 2 Explanation: Let radius = r. For hemisphere: height...
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The lower part of an ice-cream is conical and upper part is hemispheric with same...
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Cone height (h) = 9 cm, base radius (r) = 2.5 cm...
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State True/False: “The equal chords of a circle are at equal distances from the centre...
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True Explanation: In a circle, chords that are equal in length are...
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Write a difference between the geometric angle and trigonometrical angle.
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Geometric angle: It is measured in a positive direction from the initial...
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Find the value of angle in degree made by the tangent of a circle with...
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The tangent to a circle is always perpendicular to the radius at...
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State True or False: Mode = 2 × Median – 3 × Mean.
A.
False Explanation: The correct empirical relation is: Mode = 3 × Median...
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If x be the volume, y be the area of the base and z be...
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False Explanation Volume of cone = × (base area) × (height) So,...
Q.
ABCD is a cyclic quadrilateral. If ∠ADB = x° and ∠ABD = y° then ∠BCD...
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True Explanation: In cyclic quadrilateral ABCD, opposite angles are supplementary. So, ∠BAD...
Q.
If the sum of the square of the roots of the equation 6x² + x...
A.
False Explanation: The sum of the squares of the roots of a...
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x is the mean of (p + q) numbe₹ If y be the mean of...