Given $a = 7 , b = 5$, and $c = 8$, use the Law of Cosines to solve the triangle for the value of $B$. Round answer to two decimal places.

Figure not drawn to scale

A) $60.33^{\circ}$
B) $81.79^{\circ}$
C) $80.44^{\circ}$
D) $38.21^{\circ}$
E) $60.00^{\circ}$

Question

Given $a = 7 , b = 5$, and $c = 8$, use the Law of Cosines to solve the triangle for the value of $B$. Round answer to two decimal places.

Figure not drawn to scale

A) $60.33^{\circ}$ 
B) $81.79^{\circ}$ 
C) $80.44^{\circ}$ 
D) $38.21^{\circ}$ 
E) $60.00^{\circ}$

Quizplus · Accepted Answer

The Answer of Given $a = 7 , b = 5$, and $c = 8$, use the Law of Cosines to solve the triangle for the value of $B$. Round answer to two decimal places.

Figure not drawn to scale

A) $60.33^{\circ}$ 
B) $81.79^{\circ}$ 
C) $80.44^{\circ}$ 
D) $38.21^{\circ}$ 
E) $60.00^{\circ}$

Given a=7,b=5a = 7 , b = 5a=7,b=5 , And c=8c = 8c=8

Given $a = 7 , b = 5$ , And $c = 8$