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Justin estimated 56 square cm.

The actual area is 57.76 square cm.

Justin came pretty close.

Q: Justin was estimating the area of the square note estimate 7.6 cm with and 7.6 length?

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81 square units

round to the nearest whole # after estimating the square root

You estimate it!

The length of the side of a square with an area of 240 square inches is: 15.49 inches.

463! It depends on what sum you are estimating from. If the question was 462+1, I would not estimate anything other than 463. If the question was square root of 214,369, I would go for an estimate between 450 and 500.

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81 square units

round to the nearest whole # after estimating the square root

You estimate it!

The length of the side of a square with an area of 240 square inches is: 15.49 inches.

Estimating is not needed, either the equation is wrong or right!A square root is a number times by itself:10 x 10 = 100

463! It depends on what sum you are estimating from. If the question was 462+1, I would not estimate anything other than 463. If the question was square root of 214,369, I would go for an estimate between 450 and 500.

5.7 inches

9cm

81 square units Actual area 80.6404 square units

a square's sides are equal. so area = (length of side)2 = 33 inches so sqrt(33) = length of side length of side = 5.744....inches = 5.7 inches (to the nearest tenth of an inch)

Estimating implies that the number is approximate to the desired value so any number squared that is close to the desired estimation would be considered close enough. Rounding off is a form of estimating and has a set of rules that accompany it. For simple estimating, (non-medical, hazardous items not included) like "what is the square root of 169". it would be about 13X13 or 13 squared. Get closer by finding the factors of 169. and simplify.

Yes, it is.