30. A piece of wire was bent to form 4 squares and 4 equilateral triangles as
shown in the diagram below. The length of AB is 8.8 cm. find the length of the
wire.
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Answer: 52.8 cm
Step-by-step explanation:
Let AB = a+b+c+d as marked in the diagram.
AB = a+b+c+d = 8.8 cm (given in the question)
The total length of the wire = 6×(a+b+c+d) = 6 × 8.8 = 52.8 cm
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