how to find the square root 1 to 20 easily ? Is there any maths experts in btainly ?
Answers
Answer:
Example 3: Find the √12769
Solution:
Step 1: Decide the unit’s place of the result.
12769 ends with 9 = Square root will end with 3 or 7
_3 or _7
Step 2: Leave the last 2 digits and find the immediate perfect square before the remaining number.
The immediate perfect square before 127 = 121, which is 112
113 or 117
Step 3: To determine whether the square root of 12769 is 113 or 117
Method 1: Take the number that lies exactly between 113 and 117 and square it.
1152 = 13225
12769 < 13225
And since
113 < 115
Square root of 12769 is 113
Method 2: Take squares of numbers 110 and 120, since 113 and 117 lie within the range.
1102 = 12100
1202 = 14400
Since 12100 is closer to 12769, the square root must also be closer to 110, which is 113
Square root of 12769 is 113....
Yes I m a math expert....