Calculate the area of triangle ABC with altitude CD, given A (−3, −2), B (2, 3), C (-2, 5), and D (−1, 2). 14.1 square units 18 square units 19.5 square units 21 square units

Question

Calculate the area of triangle ABC with altitude CD, given A (−3, −2), B (2, 3), C (-2, 5), and D (−1, 2).   14.1 square units   18 square units   19.5 square units   21 square units

anonymous · Answer

please help!!

anonymous · Answer

if the altitude is CD then the base is AB so area=(CDxAB)/2 just calculate

anonymous · Answer

i used the distance formula for AB(7.07) and CD(3.16). And then I used your equation and got 11.17 but that answer isnt on there?

anonymous · Answer

i got the same answer...:(

anonymous · Answer

okay thank you anyway

anonymous · Answer

i think i know where the problem is:D is not on (AB)

anonymous · Answer

what do you mean?

anonymous · Answer

do you know how to find the equation of a line?

anonymous · Answer

no. im sorry:(

anonymous · Answer

ok then there's something wrong with the given

anonymous · Answer

i believe so. this wouldnt be the first time the correct answer choice wasnt there. thank you for your time:)

anonymous · Answer

yw