Refer to the Figure $\angle B = 45 ^ { \circ }$

question 15

Multiple Choice

Refer to the figure. If $\angle B = 45 ^ { \circ }$ and $A C = 40 \mathrm {~cm}$ , find $A B$ .

• A) \(80\)
• B) \(\frac { 80 \sqrt { 3 } } { 3 }\)
• C) \(40 \sqrt { 2 }\)
• D) \(40\)
• E) \(\frac { 80 \sqrt { 3 } } { 2 }\)