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The area of the base of a right circular cone is 81π cm πr2 = 81π ⇒ r2 = 81 ⇒ r = 9 The height of the cone is 12 cm The slant height of the cone (l) is AC =√ (92 + 122) ⇒ AC = 15 The curved surface area of the cone is π × 9 × 15 ⇒ 135π ∴ The curved surface area of the cone is 135π cm2
Select the option that is related to the third number in the same way as the second number is related to the first number.
14 : 210 : : 18 :?
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(Note: Operations should be performed o...
Select the option that is related to fourth number in the same way as the first number is related to the second number and the fifth number is related t...
Four number-pairs are given, out of which three are alike in a certain manner and one is different. Choose the different number-pair.
If 21 @ 16 = 12 and 30 @ 25 = 12, then 22 @ 17 = ?'. What will come in place of question mark?
Select the option in which the numbers are NOT related in the same way as are the numbers of the following set.
(21, 15, 72)
Select the option that is related to the third number in the same way as the second number is related to first number and the sixth number is related t...
14 : 75 : : ?
There are six members in a family of three generations. D is brother of I. M is sister-in-law of Z. U is mother of Z. M is mother of I. Z has a brother....
Select the option that is related to the fifth number in the same way as the second number is related to first number and the third number is related to...
