find the square of 784 using diagonal method
Answers
Answered by
2
Answer:
The square root of
784
=
28
Explanation:
It is beneficial to be able to estimate, or calculate exactly the square root of any number when a calculator is not present.
For this example, we can start an estimation limit high and low as follows:
20
×
20
=
400
is too low
30
×
30
=
900
is too high, but closer to
784
If we raise the lower limit to
25
:
25
×
25
=
625
is still too low, but closer.
Now our range is
26
→
29
.
But the squared number ends in
4
, and the only number in our range multiplied by itself to result in a
4
would be
8
×
8
.
So the Square root of
784
=
28
Answered by
1
Answer:
28 is a square of 784
i hob it is helpful for you
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