Question

The vertices of a parallelogram are A(x1, y1), B(x2, y2), C(x3, y3), and D(x4, y4). Which of the following must be true if parallelogram ABCD is proven to be a rectangle?

Answer 1

b

Answer 2

b

Answer 3

meadle me

Answer 4

can you explain it to me?

Answer 5

explained what

Answer 6

how you got that answer

Answer 7

@peachpi

Answer 8

my mom told me and is a math teavher

Answer 9

teacher

Answer 10

@edgarr what the complicated notation is basically saying is that in order for a rectangle to be possible, you must have 4 right angles

aka 4 ninety degree angles

to prove two lines cross at a 90 degree angle, you multiply the two slopes. If you get -1 as a result, then the two lines are perpendicular. Meaning they form a 90 degree angle

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also, if you can show 2 slopes are equal to one another, then the two lines are parallel

Answer 11

thank you @jim_thompson5910

Answer 12

was the answer b rigth??

Answer 13

let me check

Answer 14

do you see how I set up the drawing @edgarr ?