pre cal
posted by bob .
Given triangle ABC, A = 120, a = 8, b = 3; determine B to the nearest whole degree

Try the Sine Law
sinB/3 = sin120°/8
sinB = .3247...
B = 18.95°
or
B = 19° 
Given triangle ABC, A = 120°, a = 8, b = 3; determine B to the nearest whole degree.
Respond to this Question
Similar Questions

geometry
1. Triangle ABC has a 63.0degree angle at B, and side AC is 13.6 cm long. What is the diameter of the circle circumscribed about ABC? 
algrbra/trigonometry
in triangle ABC, angle a=120, b=10, and c=18. What is the area of triangle ABC tot he nearest square inch? 
Math
Determine the number of triangles that could be drawn with the given measure. Then, find the measures of the other angles and the other side in each possible triangle. Round side lengths to the nearest tenth of a unit and angle measure … 
precal
find the length of side b ABC to the nearest whole number if A = 42, B = 87, and a = 24 
Precal
What is the area of triangle ABC if a = 19, b = 14, and c = 23? 
Math
In the triangle ABC given, side AB is twice as long as side AC. We have: m<BAC=120° mBC= 8cm Determine rounded to the nearest unit, the perimeter of triangle ABC. 
Pre Cal
Determine a , given that A = 63°, C = 49°, and c = 3. Round answers to the nearest whole number. Do not use a decimal point or extra spaces in the answer or it will be marked incorrect. 
Pre Cal
Given: a = 640, A = 70Â°, B = 52Â° in triangle ABC ; find c . Round answers to the nearest whole number. Do not use a decimal point or extra spaces in the answer or it will be marked incorrec 
Pre Cal
Given: b = 600, B = 11°, C = 75° in triangle ABC; find a. (Round the answer to the nearest whole number.) a = 
PreCal/Trigonometry
Triangle ABC is given where angle A=64 degrees, a=16 in., and the height, h, is 15.3 in. How many distinct triangles can be made with the given measurements?