Question

Check my answer?

Answer 1

For #5, I got:
a = 29.27 degrees
b = 126.69
c = 24.04
Those are all angle measures.

Answer 2

I've checked my work a thousand times, but this is saying the answers are slightly off...
http://www.mathwarehouse.com/triangle-calculator/online.php

Answer 3

Hmm I got 33.54 degrees for A.

Answer 4

I get different numbers

Answer 5

\[\large\rm 270^2=442.85^2+255^2-2\cdot442.85\cdot255\cos A\]This is how you set it up, yes? :o

Answer 6

c^2 = a^2 + b^2 - 2 a b cos C
so
cos C= (c^2 -a^2-b^2)/ (-2 a b)

Answer 7

I did the second equation that phi gave...
\[Cos(C) = \frac{ 270^2+442.85^2-225^2 }{ 2*270*442.85 }\]

Answer 8

Oh solving for angle C instead? :d ok fair enough.
Negative in the bottom? no no you already took care of that :x ok ok

Answer 9

and you should get
cos C = 0.85302

Answer 10

I got 0.913239...
D:

Answer 11

Am I plugging something in wrong?
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=(270%5E2+%2B+442.85%5E2+-+225%5E2)%2F(2*270*442.85)

Answer 12

it was a pain to find: C is 255

Answer 13

and you are using C= 225

Answer 14

Ahhh xD thanks

Answer 15

Wait... but C does equal 225
:/

Answer 16

That's not what the picture says you silly billy sack of pebbles :O

Answer 17

are you doing Q5?

Answer 18

side C is the one opposite angle c right? 225...

Answer 19

I'm so confused o.O

Answer 20

Here is a rule of thumb when tracking down a problem:
"If you get the wrong answer, you are doing something wrong"
remember the last part: I did something wrong.
if you think you did it correctly, then you have to say: No, I am doing something wrong.

I learned that debugging "perfect" computer programs.

Answer 21

can "expand" the question and zero in on side C. what does the label say?
can you post it, showing 225 ?

Answer 22

I don't understand what I"m doing wrong though... clearly I did something wrong.. I just dunno what

Answer 23

http://assets.openstudy.com/updates/attachments/57b86012e4b0ff8c92ff7503-phi-1471702795259-q5.png

Answer 24

The side opposite C is 225... no? :O