A welder must make a bracket using three pieces of metal, as shown by A, B, and C in the diagram below. Each piece is 10 cm wide and 3.5 cm thick. The welds are indicated by dotted lines. What is the length of weld needed to make this bracket?
a) 13.1 cm
b) 14.1 cm
c) 26.2 cm
d) 28.3 cm
10
A 40
B
30
22 C