Answer:
The scale factor is 3 and Divide by 24 to find b's length.
Step-by-step explanation:
just put in the answer lol.
Add all shapes area together to know the figures complete area
triangles area 1 & 2 : 6×8 /2 -> 48/2 = 24
rectangle 1 : 6×12 -> 72
rectangle 2 : 8×12 -> 96
rectangle 3 : 10×12 -> 120
24+72+96+120
96+96+120
192+120
312cm
observe that the triangles KLM and MNL are similar. so,
(MN/c) = (c/b)
so, MN =12*12/27.73 = 5.19
