Question

Which is the best name for the quadrilateral with vertices at (2, 2), (5,-2), (1, -5), and (-2, -1)?

A-rectangle
B-rhombus
C-parallelogram
D-square
Help me please

Answer 1

Respuesta:

It is a square.

Explicación paso a paso:

if you calculate the distance between A(2,2) and B(5,-2) you get

$</p><p>d=\sqrt{((5-2)^2+(-2-2)^2}=5</p><p>$

The same with distance B(5,-2) and C(1,-5), C(1,-5) and D(-2,-1), D(-2,-1) and A(2,2), you will get 5.

Then, you calculate the gradient.

$</p><p>m=\frac{y_2-y_1}{x_2-x_1}</p><p>$

you get 3/4 or -4/3, so they are perpendicular line, because their product is -1.

Answer 2

Respuesta:

no lo se esta en ingles no lo se ricjk