Meera is drawing dots in rangoli.If there are7 dots in a row.How many dots will her rangoli have for"m"rows.How many dots are there if the number of rows are5,9 and 11?
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Number of dots in each row = 7 dots
Therefore, the number of dots = 7r
When there are rows, then number of dots = 5 x 7 = 35 dots
When there are 9 rows, then number of dots = 7 x 9 = 63 dots
When there are 11 rows, then number of dots = 7 x 11 = 77 dots
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