Find the missing number from the below options.
Number in third row is summation of square of numbers in first and second row.
$$41 = 4\times4 + 5\times5 $$
$$45 = 6\times6 + 3\times3 $$Â
$$58 = 7\times7 + 3\times3 $$
So , the answer would be Option d)3 .
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