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2 answers:
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Answer:
The length of each side of square is 9 cm
Step-by-step explanation:
<u><em>The question in English is</em></u>
The given figure is made up of 6 identical squares.The perimeter of the figure is 126 cm.what is the length of each side of square?
The picture of the question in the attached figure
Let
x ----> the length side of each square
we know that
The perimeter is the sum of the borders of the figure
so
In this problem
see the attached figure N 2 to better understand the problem
we have
so
solve for x
therefore
The length of each side of square is 9 cm
Answer:
(2,√21)
Step-by-step explanation:
The circle centered at the origin has equation:
Any point that satisfies this equation lie on this circle.
When x=2, we substitute and solve for y.
Take square root to get:
Therefore (2,-√21) and (2,√21) are on this circle.
From the options, (2,√21) is the correct answer