Question

I need help on how to figure out what B and b is

Answer 1

its an obtuse scalene triangle

Answer:

B = 100° c=4.6 b=7.36

Explanation:

38+42=80

180-80= 100

law of sines

sinC/c = sinB/b

sin38/c = sin42/5

c = 4.6

sin100/b = sin42/5

b = 7.36