Question

Please help:
In Δ ABC, sin A=88, sin B=42, and a =17, find the length of b.

Answer 1

11.4 units

Explanation:

b/sinB = a/sinA

b/sin(42) = 17/sin(88)

b = sin(42) × 17/sin(88)

b = 11.38215401

Answer 2

Explanation:

Use the law of sines.

`(sin A)/(a) = (sin B)/(b) \\`

Plug values in.

`(sin88)/(17) = (sin42)/(b)\\`

Cross multiply.

`bsin88 = 17sin42\\b = 11.38`

Hope that helps.