The area of a square postcard is 25 square inches. How long is each side postcard?
2 answers:
Answer:
The side is 5 square inches.
Step-by-step explanation:
Area of square formula:
A = s x s or
To figure out the sides, we use this formula:
A = 25 ÷ s = s
But to figure out s = side, think of factors of 25 like this:
25: 1,5,25
Now let's plug in the factors of 25 to figure out the missing side length.
A = 25 ÷ 1 = 25
This is not true.
A = 25 ÷ 5 = 5
This is true.
A = 25 ÷ 25 = 1
This is not true.
So our answer is 5 square inches on each side.
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