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2 years ago

A quadrilateral has all sides congruent, opposite sides are parallel, and opposite angles are congruent.

Mathematics

1 answer:

VashaNatasha [74]2 years ago

4 0

Answer:

B: A square

Step-by-step explanation:

Let's use the process of elimination:

We know that each shape here has opposite parallel sides so there's not much we can do about that one.

All sides congruent automatically gets rid of A.) Rectangle and C.) Parallelogram because they do not always have congruent sides

Opposite angles are congruent gets rid of D.) Rhombus. Although a rhombus can have all congruent angles, it isn't always congruent the way a square is. The definition of a rhombus is a quadrilateral with equal side lengths. Not angles.

So the only shape that meets each criteria all the time is a square.

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Answer:

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kotegsom [21]

Answer:

k = +10 or -10

Step-by-step explanation:

It's given in the question that the roots of the eqn. are real and equal. So , the discriminant of the eqn. should be equal to 0.

$= > {b}^{2} - 4ac = 0$

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2 years ago

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NISA [10]

Answer:

Option B

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Step-by-step explanation:

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Second year=40000+2000=42000

Third year=42000+2000=44000

Fourth year=44000+2000=46000

Fifth year=46000+2000=48000

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First year=30000

Second year=30000+5000=35000

Third year=35000+5000=40000

Fourth year=40000+5000=45000

Fifth year=45000+5000=50000

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3 years ago

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Answer:

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Step-by-step explanation:

Greater than 300 means >300

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2 years ago

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Answer:

Step-by-step explanation:

(17×25)×4=n×(25×4)

or 17×(25×4)=n×(25×4)

17=n

∵ (a×b)×c=a×(b×c) [by associative law of multiplication.]

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2 years ago