@amistre64Calculate the area of triangle ABC with altitude BD, given A (−6, 0), B (0, 0), C (0, 6), and D (−3, 3).

18 square units

9 square units

18.5 square units

21 square units

Question

@amistre64Calculate the area of triangle ABC with altitude BD, given A (−6, 0), B (0, 0), C (0, 6), and D (−3, 3).

 18 square units

 9 square units

 18.5 square units

 21 square units

gabylovesyou · Answer

my answer is 18.5 but im not sure

amistre64 · Answer

whats our height and base?

gabylovesyou · Answer

What does "my profile needs some alteration" mean ? moderator just sent that..

amistre64 · Answer

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amistre64 · Answer

seems like one of the mods read your profile and thinks theres something offensive in it

amistre64 · Answer

since the triagnle given is a rt triangle, point D is irrelevant

its half of a 6x6 square

amistre64 · Answer

|dw:1413660398344:dw|

gabylovesyou · Answer

ohh..... ._. and ok

amistre64 · Answer

BD can be used, but its not required since we can use any height/base combination to get the area of a triangle.  in a right triangle, thats just the sides

gabylovesyou · Answer

ok... so we can use AB and BC only ?

gabylovesyou · Answer

find distance formula for those and then plug it in 1/2BH ?

gabylovesyou · Answer

idk which one is base and height tho.. base AB height BC ?

amistre64 · Answer

distance formula if you want 

i means 6 from 0 is 6 ... and -6 from 0 is 6