saulatuiqalau saulatuiqalau

18-07-2022
Mathematics

contestada

Find B in degrees.
B
A
a
C
A b C
A = 40°
a = 8
b=7
B = [?] degrees
Round to the nearest tenth.

Find B in degrees B A a C A b C A 40 a 8 b7 B degrees Round to the nearest tenth class=

Respuesta :

Medunno13 Medunno13

25-07-2022

Answer:

34.2°

Step-by-step explanation:

sinB/b = sinA/a

sinB/7 = sin(40°)/8

sinB = 7sin(40°)/8

B=arcsin(7sin(40°))/8

So, to the nearest tenth, B is 34.2°.

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