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PilotLPTM [1.2K]
3 years ago
7

John says that because rhombuses do not have perpendicular sides, they cannot be rectangles. Explain his error in thinking

Mathematics
2 answers:
Ksenya-84 [330]3 years ago
7 0
Even though most rhombuses are not rectangles(their angles are not all 90)
Some are. The only one that is, is a square. It is a rhombus, and it is a rectangle.
ankoles [38]3 years ago
3 0

For a rhombus to be a rectangle, a quadrilateral must have 4 equal sizes. However, some rhombuses, particularly squares have perpendicular sides and they are also rectangle.

<h2>Further Explanation</h2>

Therefore, a rhombus can be a rectangle only if all the angles are 90 degree and also a rectangle can be Rhombus only if the sides of the rectangle have equal length.  

A definition of a square also fits for a rectangle and Rhombus, because all the angles are 90 degree in rectangle and in rhombus, all the size has equal length.  

A rectangle has four sides with flat shape and all the angle is a right angle. Since all the sides are equal, a rectangle is called equiangular quadrilateral. It is also called parallelogram due to the fact that all the lines are parallel, a parallelogram is a quadrilateral where the opposite sides are equal and parallel.  

A rhombus has 4 equal straight sides with a flat shape. All the sides of a rhombus have equal length. The opposite sides are equal and parallel. The adjacent sides of a rhombus are supplementary.

Also by definition, all the sides in rhombuses are congruent and it has all the properties of a parallelogram particularly, the parallel sides, opposite angles and consecutive angles

LEARN MORE:

  • Marvin says that all rhombuses are squares brainly.com/question/1289560
  • What do rectangles and rhombuses have in common brainly.com/question/1929946

KEYWORDS:

  • perpendicular sides
  • rhombuses
  • rectangles
  • parallel sides
  • parallelogram
  • consecutive angles
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luda_lava [24]

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A tessellation has 2 pairs of congruent angles around the point of intersection. The measure of each of one pair of congruent an
Over [174]

9514 1404 393

Answer:

  152°

Step-by-step explanation:

If two pairs of congruent angles total 360°, then the different angles must total 180°. The other angle measure is 180° -28° = 152°.

The measure of each angle in the other congruent pair is 152°.

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=5x-%20%5Cdfrac%7B%20%5Csqrt%7B%209%20%7B%20x%20%7D%5E%7B%202%20%7D%20-6x%2B1%20%5Cphantom%7B%5
Morgarella [4.7K]

Answer:

=5x+1          or          =5x-1

Step-by-step explanation:

One is given the following equation:

5x-\frac{\sqrt{9x^2-6x+1}}{1-3x}

The problem asks one to simplify the expression, the first step in solving this equation is to factor the equation.  Rewrite the numerator and denominator of the fraction as the product of two expressions. Remember the factoring patterns:

(a-b)^2=a^2-2ab+b^2

=5x-\frac{\sqrt{9x^2-6x+1}}{1-3x}

=5x-\frac{\sqrt{(3x-1)^2}}{-(3x-1)}

Now simplify the numerator. Remember, taking the square root of a squared value is the same as taking the absolute value of the expression,

=5x-\frac{\sqrt{(3x-1)^2}}{1-3x}

=5x-\frac{|3x-1|}{-(3x-1)}

Rewrite the expression without the absolute value sign in the numerator. Remember the general rule for removing the absolute value sign:

|a-b|\\=a -b           or           (-a-b) = b-a

=5x-\frac{|3x-1|}{-(3x-1)}

=5x-\frac{3x-1}{-(3x-1)}          or          =5x-\frac{-(3x-1)}{-(3x-1)}

Simplify both expressions, reduce by canceling out common terms in both the numerator and the denominator,

=5x-\frac{3x-1}{-(3x-1)}          or          =5x-\frac{-(3x-1)}{-(3x-1)}

=5x-(-1)          or          =5x-(1)

Simplify further by rewriting the expression without the parenthesis, remember to distribute the sign outside the parenthesis by the terms inside of the parenthesis; note that negative times negative equals positive.

=5x-(-1)          or          =5x-(1)

=5x+1          or          =5x-1

6 0
2 years ago
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