Radha is drawing a dot Rangoli (a beautiful pattern of lines joining dots with chalk powder as in figure). She has 8 dots in a row. How many dots will her Rangoli have for r rows? How many dots are there if there are 8 rows? If there are 10 rows?
Lets figure out the given by the following steps: Number of dots in each row = \(8\) dots Number of rows = \(r\) Therefore, number of dots = \(8r\) When there are \(8\) rows, then number of dots = \(8 \times 8\) = \(64\) dots When there are \(10\) rows, then number of dots = \(8 \times 10 = 80\) dots So, the correct answer is: 80 dots.