If the iron railing on the road side is not painted, a brown rust would form on its surface because the moist air of the atmosphere reacts with iron to form brown flaky substance on its surface. The rust is hydrated iron (III) oxide, Fe2O3.xH2O.
Solution:
Let the minimum length of the shortest side be x.
Then the longest side of a triangle is 3x and the third side is 3x – 2.
Perimeter of the triangle ≥ 61
x +...
Solution:
For an m×n chessboard there are 2m+2n−2 ways.
Case I. There are two horizontally adjacent squares of the same color: 2m−2 ways.
Case II. There are two vertically adjacent squares of the same color: 2n−2 ways.
Case III. None of the...
Solution:
Let the length of the shorter side be x metres.
Thus the length of the longer side=(x+30) m
Length of the diagonal=(x+60)m
Each angle of a rectangle=90 degrees
By Pythagoras Theorem, (diagonal)2=(shorter side)2+(longer side)2
(x+60)2 ...
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(a) Kalamkari painting is a type of hand-painted or block-printed cotton textile which are produced in parts of India and in Iran. The Machilipatnam Kalamkari craft made at Pedana nearby...
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