Question

Please help! What is the area of △ABC to the nearest tenth of a square meter?

Answer 1

are you doing trig?

Answer 2

Yes. I'm in Algebra 2, but they put this question in it for some reason..

Answer 3

@jdoe0001 Do you know how to solve this?

Answer 4

sorry, I'm a bit lagged

hmm, have you covered the Law of Cosines yet?

Answer 5

No :/ I'm so lost.

Answer 6

ok... ahemm... I mean... well, is trig...... ohh, wait... you want the area, not the side

Answer 7

Yes the area.

Answer 8

ok

http://img.docstoccdn.com/thumb/orig/33110351.png

Answer 9

I don't know what BC equals.

Answer 10

they picture doesn't say BC, just "bc" lowercase, meaning the corresponding sides

Answer 11

So 1/2 * 70 * 70 = 2450

Answer 12

Would A be the correct answer?

Answer 13

for your case it'd be
$$
\cfrac{1}{2} 70\times 70 \times sin(36^o)
$$

Answer 14

so, what do you get?

Answer 15

Which is 1440.1 :)

Answer 16

Correct?

Answer 17

so, there :)

Answer 18

yes

Answer 19

ok... have you covered yet the Law of Sines?