Question

√C =169
find C . add 5 to the unknown number. find the result? ​

Answer 1

Answer:

let the unknow number be x

according to question

Answer 2

Answer:

C = 13

C + 5 = 18

Step-by-step explanation:

i)

√C = 169.

Here, C is an unknown number. Question says that C is a root of 169.

What is the square root of 169?

*Refer to the attachment.

We get square root of 169 as 13.

So, C = 13

ii)

Adding 5 to the unknown number.

➝ C + 5

➝ 13 + 5

➝ 18

How to find Square Root :-

A long division method process is accompanied with following steps :

• Step 1.

Group the Non decimal part number into two from left hand side. And decimal part of number into two from right hand side.

• Step 2.

Think of the largest number whose square is equal to or just less than the first period.

• Step 3.

Now double the value of the quotient and enter it with a blank on the right side.

• Step 4.

select the largest digit for the unit place of the divisor such that the new number, when multiplied by the new digit at unit’s place, is equal to or less than the dividend.

keep on repeating till you get the intended perfect square or decimal places.