Question

Please answer this!!!

Find the square root of 3.2 correct to two decimal places ​

Answer 1

Answer:

Square root

The number which is multiplied by itself is called square root.

Eg. root 9= 3×3.

So, root 9 is a square root of 3, cuz 3 is multiplied by itself to get root 9.

Root is given by a sign AKA radical.

Visual method

Think you've a squre which has each side of 4 cm.

Then, its area will be 16cm^2. (area of square= side×side)

So, square root can be thought as area of a square.

Coming at the question, we've to find the square root of 3.2.

this won't come as a natural number but just an approximate.

root 3.2= 1.788

Answer 2

Answer:

Square root of 3.2 correct to two decimal places is 1.79.

Step-by-step explanation:

Given digit is 3.2.

Here we want to find square root of 3.2 correct to two decimal places.

Now,

$\sqrt{3.2} \\ = \sqrt{ \frac{32}{10} } \\ = \sqrt{ \frac{16}{5} } \\ = \sqrt{ \frac{2 \times 2 \times 2 \times 2}{5} } \\ = \frac{2 \times 2}{ \sqrt{5} } \\ = \frac{4}{ \sqrt{5} } \\ = 1.7889$

Therefore,square root of 3.2 correct to two decimal places = 1.79

Some important square value:

${1}^{2} = 1 \\ {2}^{2} = 4 \\ {3}^{2} = 9 \\ {4}^{2} = 16 \\ {5}^{2} = 25 \\ {6}^{2} = 36 \\ {7}^{2} = 49 \\ {8}^{2} = 64 \\ {9}^{2} = 81 \\ {10}^{2} = 100 \\ {11}^{2} = 121 \\ {12}^{2} = 144 \\ {13}^{2} = 169 \\ {14}^{2} = 196 \\ {15}^{2} = 225 \\ {16}^{2} = 256 \\ {17}^{2} = 289 \\ {18}^{2} = 324 \\ {19}^{2} = 361 \\ {20}^{2} = 400 \\ {21}^{2} = 441 \\ {22}^{2} = 484 \\ {23}^{2} = 529 \\ {24}^{2} = 576 \\ {25}^{2} = 625 \\ {27}^{2} = 729 \\ {28}^{2} = 784 \\ {29}^{2} = 841 \\ {30}^{2} = 900$

Square root related two more questions:

https://brainly.in/question/17174336

https://brainly.in/question/5282843

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