Radha is drawing a dot rangoli (a beautiful pattern of lines joining dots) with chalk powder. She has nine 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?
Radha is drawing a dot rangoli (a beautiful pattern of lines joining dots) with chalk powder. She has nine 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?










