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kherson [118]
3 years ago
13

Quadrilaterals are squares

Mathematics
1 answer:
fomenos3 years ago
3 0
<u>Basic answer</u>
When is a quadrilateral a square?
When it has four right angles and four congruent sides.

<u>Geometry Answer (just in case, since the question is vague)</u>
How can you prove if a quadrilateral is a square?


It is a square if it is both a rectangle and a rhombus.

It is a rectangle if
a) It has a right angle and is a parallelogram
b) It has congruent diagonals and is a parallelogram
c) It has four right angles

It is a rhombus if
a) It has two adjacent sides congruent and is a parallelogram
b) Its diagonal bisects opposite angles and it is a parallelogram
c) Its diagonals perpendicular bisect each other

It is a parallelogram if
a) Two pairs of opposite sides parallel
b) Two pairs of opposite sides congruent
c) One pair of sides both congruent and parallel
d) The diagonals bisect each other
e) Two pairs of opposite angles congruent
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In 17th year, his income was $30,700.

Step-by-step explanation:

It is given that the income has been increasing each year by the same dollar amount. It means it is linear function.

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Income in 4th year = $20,300

Let y be the income at x year.

It means the line passes through the point (1,17900) and (4,20300).

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The income equation is y=800x+17100.

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