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Is - 81 a perfect square?
No negative number can be a square. (At least not using the kind of numbers you've learned to use so far.)
What is the number when multiplied by 84 will give you perfect square?
that sounds like someone's using answers.com instead of doing homework.
How could you find the surface area without using a formula?
i think its impossible Here is a way: Construct a number of squares that are one unit in area. For example, if you want to know the area of a plot of land, construct squares that are one square foot each. Then put as many of those squares as possible onto your plot without any gaps or any overlapping. Count the number of squares that you were able to put.
What is the perimeter of a square if it has an area of 49 centimeters squares?
Area of a square can be calculated using the formula A = a^2, where "a" is the length of a side of the square. Its perimeter is P = 4*a. 49 = a^2 => a = 7cm P = 4*7 = 28cm The perimeter of the square is 28cm.
How do you find the area of a figure using a grid?
You can't find the exact area of of most shapes with a grid, but you can get a pretty good approximation with the following method: 1) Count the number of squares completely inside the shape. Let's call this number X. 2) Count the number of squares that are partially inside the shape (squares with the shape's outline passing through them). We'll call this number Y. 3) A = X + 0.5Y The answer is in squares, so you need to know the grid spacing if you want to convert to inches or something. Remember, this isn't exact. The smaller the squares, the better the results. If you need to be really accurate, try the following: 4) Repeat steps 1 - 3 for a bunch of different grid sizes (e.g. 1", 0.5", 0.25". 0.125", etc.). 5) Graph the results from step 4 as Area vs. Grid Size. 6) Draw an approximate curve through the points you graphed, and estimate the asymptote as Grid Size approaches infinity. Carefully cut out the figure and mass it on a good balance. Cut out a square or rectangle of about the same size as the figure from the same grid paper and carefully mass it on the balance. You can then calculate the mass per grid square or mass per unit area. Divide the mass of the figure by mass per unit area and you have the area.
What is a perfect square number?
Multiplying a number by its self is called squaring a number When using exponents, the second power of a whole number is called a perfect square too, For example, write 4 squared = 16, 7 squared = 49, and 265 = 70, 225 are all perfect squares.
Simplify the square root of 512?
The idea is to take out perfect squares. The largest perfect square in this case is 256, which is the square of 16 (if you have trouble figuring this out, you can take out a smaller perfect square first, and then see if you find additional perfect squares). In any case, the end result should not have a factor that is a perfect square. Using the symbol "root()" for square root: root(512) = root(256 x 2) = root(256) x root(2) = 16 root(2)
Can you form a rectangle using any number of small squares?
N0- you can't use one square.
Why is a number a perfect square?
you can multiply two whole numbers together to get that. if you use graph paper, you could make a perfect square. the area of that square is called a perfect square because you can make a perfect square using that many units as the area. for example 4x4=16, so 16 would be the perfect square.
How can you tell if a number is a perfect square?
One way is to get the prime factorization of the number. If every prime occurs an even number of times, it is a square, otherwise, not. Another is to estimate the square root of the number, and square it. If you get more than the number, try a lower estimate; if less, a higher one. Using interval bisection you very quickly zero in on the square root, if it is a whole number. If so, the number is a perfect square. Otherwise, you find 2 consecutive whole numbers between which is the square root, in which case it is not a perfect square.
Is it possible to draw a perfect square?
Well it all depends if you want to use a ruler If not you can if you are very patient because if you used square paper you can draw using the squares. If you do just use a ruler and Measure !!xx
Is - 81 a perfect square?
No negative number can be a square. (At least not using the kind of numbers you've learned to use so far.)
What sports involve using squares?
Four-square, the game where you try to get people out by bouncing the ball in their square.
Is the square root of 6 rational?
No; you can prove the square root of any positive number that's not a perfect square is irrational, using a similar method to showing the square root of 2 is irrational.
Why are square roots call squared roots '?
A square root is the number that is squared to obtain a square number so it can therefore be considered a root of that square number (or basis for that square number). It can also be noted that each square number, when displayed using dots will always form a perfect square perhaps giving it it's name e.g. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . etc...
What is the number when multiplied by 84 will give you perfect square?
that sounds like someone's using answers.com instead of doing homework.
How do you make 2 squares using 10 matches?
__ __ | | __ __ | | __ __ hope u can see that. :S * * * * * Not easy to see. In any case, it gives two rectangles, not two squares. What you need is a 2x2 square and in one of its corners, a 1x1 square.
