Drew K.

Algebra and Trigonometry

1 day, 11 hours ago

Remember, even if you enter an answer rounded to a set number of decimal places, if you use that number in a future calculation, you should use all of the decimal places reported on your calculator!
Solve triangle
A
B
C
A
B
C
if
?
A
=
?
=
40.9
°
?
A
=
?
=
40.9
°
,
b
=
12.5
b
=
12.5
m, and
c
=
15.5
c
=
15.5
m.
Using the Law of Cosines,
a
?
a
?
Incorrect m.
Your answer should accurate to 2 decimal places.
Using the Law of Cosines again,
?
=
?
=
Incorrect°.
Your answer should accurate to 2 decimal places.
Finally, using the sum of angles for triangles,
?
C
=
?
=
?
C
=
?
=
Incorrect°
Your answer should accurate to 2 decimal places.
Assume
?
?
?
?
is opposite side
a
a
,
?
?
?
?
is opposite side
b
b
, and
?
?
?
?
is opposite side
c
c
.