Question

is this a right triangle?

Answer 1

Will answer for medal

Answer 2

jk yes

Answer 3

i know it looks like one but is there a formula that i can use to make sure? someone told me to use the slope perpendicular formula or something like that but idk how to do that

Answer 4

yes the lines are perpendicular

Answer 5

If they are perpendicular then the intersection they meet at becomes a right angle

Answer 6

find the slopes and if they are opposite reciprocal then they are perpendicular

Answer 7

for example if the slope of one is 1/4 then the opposite reciprocal is 4/1

Answer 8

the slope for AC is -1 and the slope for AB is 1

Answer 9

does that mean its a right triangle?

Answer 10

?

Answer 11

@SilverRain

If the slope is 1/4 then the perpendicular has slope -4/1 (not 4/1 as you said above)

Answer 12

what would this mean about the triangle?

Answer 13

that its a right triangle? @MrNood

Answer 14

?????

Answer 15

if two lines are perpendicular then the slopes are 'negative reciprocal'

i.e if slope of 1 is m then th eother is -1/m

and conversely if to lines have negative reciprocal slopes then the are perpendicular.

If AB and AC have negative reciprocal slopes then ABC is a right angle.

All the info you need to decide for yourself is in th eposts above...

Answer 16

is the slope for AB 1?

Answer 17

and AC is -1

Answer 18

Look - you are spending more time looking for someone to give you the answer than it would take to do it.

YES slope AB IS 1

Answer 19

no i just needed the steps which is why im telling you what im getting

Answer 20

ok

Answer 21

if slope of 1 is m then the other is -1/m