Advertisements
Advertisements
प्रश्न
A decimal number is multiplied by itself. If the product is 51.84, find the number.
Advertisements
उत्तर
Let the number be x.
Then, product = x × x = x2
But product = 51.84 ...[Given]
∴ x2 = 51.84
⇒ x = `sqrt(51.84)`
Now, place the bar over the numbers, then square root is given below.
∴ x = `sqrt(51.84)` = 7.2
| 7.2 | |
| 7 | `bar51. bar84` |
| 49 | |
| 142 | 284 |
| 284 | |
| 0 |
Hence, the required number is 7.2
APPEARS IN
संबंधित प्रश्न
Find the square root in decimal form:
84.8241
What is that fraction which when multiplied by itself gives 227.798649?
The area of a square playground is 256.6404 square metres. Find the length of one side of the playground.
Find the square root the following correct to three places of decimal.
237.615
Find the square root the following correct to three places of decimal.
15.3215
Find the square root the following correct to three places of decimal.
0.019
Find the square root the following correct to three places of decimal.
`7/8`
Given that: \[\sqrt{2} = 1 . 414, \sqrt{3} = 1 . 732, \sqrt{5} = 2 . 236 \text { and }\sqrt{7} = 2 . 646,\] evaluate the following:
\[\sqrt{\frac{144}{7}}\]
Using square root table, find the square root
1312
Find the decimal fraction which when multiplied by itself gives 84.64.
