Square Root Estimator
A square has a certain area. Can you estimate its side length?
Hint:
Remember,
√area = side length
. If the area is between two perfect squares, the side length is between their square roots. Try
√
36
=
6
and
√
49
=
7
.
Area of the square
50
?
side ≈ 7.07
Your estimate for the side length
7.0
How confident are you?
Not sure
Somewhat
Very sure
Reveal Answer
Results
Your Estimate
7.0
Actual Value
7.07
Error
0.07
Error %
1.0%
Great estimation!
Your guess was very close.
Where √
50
sits on the number line
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