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9. Find the area of the square
Mark
21 cm
23 cm
Answers
Answered by
0
Answer:
(I) 7cm
(iI) 23 is not a perfect square
Answered by
0
21=441
23=529
EXPLANATION
side of the square=21
area=21*21=441
side of the square=23
area =23*23=529
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