Question

Calculate the area of triangle ABC with altitude CD, given A (-7, -1), B (-1, 5), C (0, 0), and D (-3, 3). (5 points)
Select one:
a. 9 square units
b. 18 square units
c. 18.5 square units
d. 21 square units

Answer 1

@eliassaab

Answer 2

yea I did

Answer 3

what?

Answer 4

Sorry, wait a minute.

Answer 5

Find the length of CD and the length of AB and the area will 1/2 CDx AB

Answer 6

I'm guessing C.

Answer 7

\[
CD= 3 \sqrt 2\\
AB = 6 \sqrt 2
Area = \frac 12 (3 \sqrt 2)(6 \sqrt 2)=18
\]

Answer 8

so b then rigth

Answer 9

yes

Answer 10

\[
CD= 3 \sqrt 2\\
AB = 6 \sqrt 2\\
Area = \frac 12 (3 \sqrt 2)(6 \sqrt 2)=18

\]

Answer 11

Did you understand it?

Answer 12

yes I di thank you

Answer 13

YW