Question
Calculate the slant height of a right circular cone if
the volume is 1232 cm³ and the base area is 154 cm².Solution
Volume of cone = Area of base × height ÷ 3 So, height of the cone = 1232 ÷ 154 × 3 = 24 cm Area of the base = πr2 (Where ‘r’ is the radius) 154 = (22/7) × r × r Or, r2 = 49 So, r = 7 (As radius cannot be negative) Slant height of cone = √(radius2 + height2) So, slant height = √(72 + 242) = √(49 + 576) = 25 cm
More Mensuration Questions
121/? = ?/144
- What will come in the place of question mark (?) in the given expression?
?² = 28% of 35% of 4500 - What will come in place of (?), in the given expression.
(81 ÷ 9) + (121 ÷ 11) + (64 ÷ 8) = ? 32% of 4080 + 24% of 455 = x% of 4000
(750 / 15 × 15 + 152 + 20% of 125) = ?3
(60 × 8 ÷ 10) × 5 = ?
If the weight of 1 liter of water is 1 kilogram, then the volume of 0.1 gram of water is how many cubic millimeters.
540 ÷ 6 + 25 % of 120 + ? * 8 = 72 * √9
3/7 Of 504 ÷ 12 + 17 = √?
40 × 5 + 27) × 9 = ?
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