Question

help fast please

A quadrilateral is plotted with points at A(-9, 7), B(0, 26), C(19, 17), D(10, -2). Which statement about the quadrilateral is correct?

Answer 1

A ) It is a square because AC = BD.

B ) It is a square because AB, CD, BC, and AD are equal and they form 90 degree angles.

C ) It is a square because AC is parallel to BD.

D ) It is a not a square because AC is not equal to AB.

Answer 2

its not a square but AC is not equal to AB. is not the correct reason....so, my best guess is last one...

Answer 3

thank you :)

Answer 4

I'm getting AB = 21.023796 roughly and every other side, BC, CD, and AD are the same length

also if you use the distance formula, you'll find that AC = BD

so that means it has to be a square

Answer 5

the best answer would have to be B because squares have 4 equal sides and have 4 right angles

Answer 6

they don't seem to form 90 degrees...

Answer 7

they do, find the slopes of each line, you'll see that the adjacent slopes multiply to -1

Answer 8

hmm...didn't actually calculate, and just saw the graph, where they didn't SEEM to form 90 ...sorry, my bad, then its square .

Answer 9

yeah something is wrong with the graph (scale's off maybe? or it's not using a square viewing rectangle?)

with geometry, you should never use the graph alone...I know, it's counter-intuitive

Answer 10

So the graph is wrong and its B?

Answer 11

yes, to both.

Answer 12

kk, thank you both:)

Answer 13

Thanks for the medal jim_thompson5910