Answer:
1
Step-by-step explanation:
since both the triangles are Congruent
Side BC = side FE
13x - 12 = 7x - 6
13x - 7x = -6 +12
6x = 6
x = 6/6
x = 1
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3.6
divide 36 by 10 be sure it's the easiest part
B = 4×4×ㅈ
l = 5 cm
SA= 4×5×ㅈ + 16 ㅈ
SA = 36 ㅈ
