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Fittoniya [83]
3 years ago
11

Why is a square always a rectangle but a rectangle is not always a square

Mathematics
2 answers:
exis [7]3 years ago
8 0

For the same reason that a man is always a person but a person
is not always a man. 

And the same reason that a 5th grader is always a student but a student
is not always a 5th grader.

A square is a special kind of rectangle ... one with all equal sides.  If all the
sides are not equal, then it's still a rectangle, but it's no longer the 'special'
kind of rectangle.


mihalych1998 [28]3 years ago
3 0
<span>A square is a special kind of rectangle, it is one where all the sides have the same length. Thus every square is a rectangle because it is a quadrilateral with all four angles right angles. But not every rectangle is a square, to be a square its sides must have the same length.</span>
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Find the center of the circle that can be circumscribed about EFG with E(2,2),F(2,-2), and G(6,-2)
RSB [31]
Hmmm I'd say the center of the circle will end up at the center of the triangle, namely the Centroid of the triangle circumscribed in the circle.

\bf \textit{Centroid of a Triangle}&#10;\begin{array}{llll}&#10;\stackrel{E(2,2)~~F(2,-2)~~G(6,-2)}{\left(\cfrac{2+2+6}{3}\quad ,\cfrac{2-2-2}{3}\quad \right)}&#10;\end{array}
6 0
3 years ago
After the addition of an acid, a solution has a volume of 90 milliliters. The volume of the solution is 3 milliliters greater th
11111nata11111 [884]

Answer: 21.75\ milliliters

Step-by-step explanation:

Let be "x" the original volume of the solution (in milliliters) before the acid was added and "y" the volume of the solution (in milliliters) after the addition of the acid.

Set up a system of equations:

\left \{ {{x+y=90} \atop {y=3x+3}} \right.

Applying the Substitution Method, you can substitute the second equation into the first equation and then solve for "x":

x+y=90\\\\x+(3x+3)=90\\\\4x+3=90\\\\x=21.75

6 0
4 years ago
A gallon of milk costs $3 nowIf the price is increasing 10% per year, how long before a gallon of milk costs $10 a gallon? Round
r-ruslan [8.4K]

Answer:

The answer is 33 years.

Step-by-step explanation:

10% of 3 is .3

Just move the decimal to the left.

.3 times 33=9.9

9.9~10

3 0
3 years ago
Help please <br> I need this today
Katen [24]
Triangles a are similar because they have the same degrees

And Triangles d are similar because they are the same shape
3 0
3 years ago
Solve the equation<br> 12 + 4m = 24<br> A)m=9<br> B)m=8<br> C)m=3<br> D)m=-6
pantera1 [17]
12 +4m = 24

4m = 12

m = 12/4

m = 3  so choice C. is right sure 
8 0
3 years ago
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