Question
Determine the curved surface area of a right circular
cone whose height is 23 cm and diameter of the base is 46 cm.Solution
ATQ, Curved surface area of a cone = π × r × x {Where 'x' is the slant height and 'r' is the radius of the cone} x2 = 232 + (46/2)2 Or, x2 = 529 + 529 Or, x = 23√2 cm So, required area = π × 23 × 23√2 = 529π√2 cm2
Find the missing term.
   In each of the following questions, select the related number from the given alternatives:
8/15 : 2/5 : : 16/21 : ?
Select the missing number from the given responses.Â
Find the missing term:
Find the missing number.
20, 30, 42, 56, 72, ?
- Study the given pattern carefully and select the number that can replace the question mark [?] in it.
First row: 10, 6, 964
Second row: 7, 3... Find the missing term in the following series:
43 44 ? 69 185
...Find the missing number by analysing the pattern followed by the numbers in each row.
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
 First row: 84, 42, 49
Second row: ...
Study the given pattern carefully and select the number that can replace the question mark [?] in it?
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