The area of a square picture is 441 sq cm, what is the length of its side?
Answers
Answered by
2
Answer:21 cm
Step-by-step explanation:
Answered by
2
Answer:
21 cm
Step-by-step explanation:
area of a square = side * side
441 sq cm = 21 * 21
therefore the length of its side = 21 cm
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