Question
The area of an equilateral triangle increases by 16√3
square units when the length of each side is increased by 4 units. What is the original perimeter of the triangle?Solution
Let length of each side of the equilateral triangle = ‘x’ units After increment, length of each side of the equilateral triangle = (x + 4) units According to the question, (√3/4) × (x + 4)2 – (√3/4) × x2 = 16√3 Or, (√3/4) × [(x + 4)2 – x2)] = 16√3 Or, (1/4) × [x2 + 16 + 8x – x2)] = 16 Or, (1/4) × (16 + 8x) = 16 Or, 16 + 8x = 64 Or, 8x = 48 Or, x = 6 Therefore, original perimeter of the equilateral triangle = 3x = 6 × 3 = 18 units
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Find the odd one out
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Find out the odd letter/letters pair from the given alternatives.
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Find the one which does not belong to that group?
Four of the following five are alike in a certain way based on a group, which among the following does not belong to that group?
Out of the given words, three are similar in a certain manner. However, one option is NOT like the other three. Select the option which is different fr...
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
