Question

in Triangle ABC, A=102* 12', B=23*21' and c=19.8. Find a to the nearest tenth.

a. 8 b. 23.8 c. 48.4 d. 64.4

Answer 1

Triangle questions in which you are given a combination of sides/angles will usually involve the Sine Law, the Cosine Law and/or pythagorean Theorem.
The Sine law will be used if you have the combo of an angle and the side opposite of it.
The cosine law will be used if you have all the sides, or an angle enclosed by two sides.

Answer 2

Can you draw me a picture of what this triangle will look like?

Answer 3

what are teh asterisks(*) feet?

Answer 4

No it is degree

Answer 5

degrees, minutes, seconds?

Answer 6

I suppose so. That is all the question says.

Answer 7

I'd start with:
-converting the angles from DMS to pure degrees.
-solving the 3rd angle (sum of angles is 180*)
-use sin law to solve side a

Answer 8

Ok. So I would do 102.2 and 23.35?

Answer 9

absolutely :D

Answer 10

and the third angle should be 54.45?

Answer 11

yup