Sum of Two Consecutive Triangular Numbers Is a Square Number
How many squa...
Question
How many squares are there in the figure?
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Solution
The squares composed of two components each are ABKJ, BCLK, CDEL, LEFG, KLGH and JKHI i.e.6 in number. There is only one square i.e. CEGK composed of four components. The squares composed of eight components each are ACGI and BDFH i.e. 2 in number. There are 6 + 1 + 2 = 9 squares in the figure.