Question

Can anyone tell me if this quad has enough characteristics to be a parallelogram?

Answer 1

Its a Sideways Rhombus, and a Rhombus is a parallelogram c:

Answer 2

what in the drawing makes it a rhombus

Answer 3

how do u know it has 2 paris of parallel lines

Answer 4

the Equilateral sides. and if yah turn your head, its a rhombus,

Answer 5

the sides aren't makred congruent

Answer 6

Because, a rhombus had 2 pairs of parallel lines, xD it

Answer 7

these are just obvious characteristics xD

Answer 8

Alright, I'll explain why.

First, you notice that all three of it's angles are equal(technically it only notates two of them, but because all triangles have the same total angle measure the third measure has to be the same.) This means the triangles are, at very minimum, similar. Since they have one side in common, and the side that matches is corresponding, then the two triangles are congruent.

Answer 9

The problem with Marr Bear's answer is that the images aren't always to scale; just because the figure looks like it's a rhombus does not necessarily mean it actually is.(I learned this the hard way in Geometry. NOTHING is ever truly to scale.)

Answer 10

Right, I knew u couldn't just look at the drawings and make a decision. So if 2 triangles are congruent then the figure is a parallelogram-right?

Answer 11

Yeah. Because of the rule of CPCTC, the opposite sides are congruent. And if both pairs of opposite sides are congruent(it actually probably isn't a rhombus, just trapezoid), then the lines are parallel.

Answer 12

ok thanks

Answer 13

You can also look at it with the alternate interior angles converse: because the opposite interior angles are congruent, then the two pairs of sides must be parallel.

Answer 14

yes, I was looking at the alternte angles that were marked

Answer 15

Eh. In any event, there's your answer.