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bixtya [17]
3 years ago
9

Which steps will verify that a parallelogram is a rectangle? Check all that apply.

Mathematics
2 answers:
avanturin [10]3 years ago
8 0

Answer;

-Calculate the lengths of the diagonals, and show that they are equal.

-Calculate the slopes of every side, and show that adjacent sides are perpendicular.

Explanation;

-A parallelogram is a quadrilateral with 2 pairs of opposite, equal and parallel sides. If the diagonals of a parallelogram are congruent, then it’s a rectangle and also if a parallelogram contains a right angle, then it’s a rectangle.

UkoKoshka [18]3 years ago
5 0

Answer:

1st and last

Step-by-step explanation:

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☺ Hello mate__ ❤

◾◾here is your answer...

i think right question is this

(3x − 7y)^2

ok now start solving:-

(3x − 7y)^2

=> (3x − 7y) (3x − 7y)

=> 3x(3x- 7y) -7y(3x-7y)

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=> 9x^2 -27xy +27xy + 49y^2

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so your correct ans. is 9x2 + 49y2

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I hope, this will help you.☺

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