Question

12. Radha is drawing a dot rangoli (a beau
with coloured chalk powder). She has 9 dots in a row. How di
will her Rangoli have for Trows? How many dots are there if there are 8
rows? If there are 10 rows?​

Answer 1

Answer:

Here is the answer

Step-by-step explanation:

Number of dots in one row = 9 dots

Number of dots in 2 row = 9×2

= 18 dots

Number of dots in 3 row = 9×3

= 27 dots

So, Number of dots = 9× number of rows

writing number of rows = r

Number of dots = 9×r

= 9r

where r = number of row

If there are 8 rows

Then,r = 8

Number of dots = 9r

= 9×8

=72

If there will be 72 dots in 8 rows

If there are 10 rows

Then , r = 10

Number of dots = 9r

=9 × 10

=90

There will be 90 dots in 10 rows

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