Users' questions

IS 225 a perfect square or a perfect cube?

IS 225 a perfect square or a perfect cube?

The number 225 on prime factorization gives 3 × 3 × 5 × 5. Here, the prime factor 3 is not in the power of 3. Therefore the cube root of 225 is irrational, hence 225 is not a perfect cube.

What is the perfect square of 255?

Since 255 is not a perfect square, it is an irrational number.

IS 400 a perfect square?

What Is the Square Root of 400? The square root of a number is the number that when multiplied to itself gives the original number as the product. This shows that 400 is a perfect square.

Why is 9 The square root of 81?

Explanation: 81=9⋅9 then the square root of √81=9 . Because the double multiplication for the same sign is always positive, the square root is also valid with the other sign 81=(−9)⋅(−9) then √81=−9 and we can say that √81=±9 .

Is 245 a perfect square or is 245 a square number?

Square number and perfect square mean the same thing. Anyway, for 245 to be a square number, 245 must be the product of an integer multiplied by itself. In other words, the square root of 245 must equal a whole number (integer). There is no integer that you can multiply by itself that will make 245.

What are all the real square roots of 225?

The square root of 225 is 15, both the perfect square 225 and its square root 15 has the unit digit as 5. The number of squares in a scrabble board is 225, in which it has 15 boxes horizontally, and 15 boxes vertically (15 x 15 = 225).

Which number is perfect square?

perfect square. The number four is a perfect square. The definition of a perfect square is a number that is the result of a number multiplied by itself. An example of a perfect square is 4, because 4 can be reached by multiplying 2 times 2. YourDictionary definition and usage example.

How do you calculate perfect square?

When a polynomial is multiplied by itself, then it is a perfect square. Example – this polynomial ax 2 + bx + c; if b 2 = 4ac is a perfect square. Perfect Square Formula is given as, (a+b) 2 = a 2+2ab+b 2.