6. Rhea is drawing a dot rangoli with coloured powder. She has 12 dots in a row. How many dots will she use if she makes a big rangoli with 20 rows ? Write a pattern for the same using r for number of rows.
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in a row she draw =12dots
how many dots will she use if she makes a big rangoli with 20rows=12×20=240
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Answer:
Correct answer will be 240.
Step-by-step explanation:
The explanation is given in the pic.
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