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3. The following is an isosceles triangle made using a piece of wire. If an
equilateral triangle is made using the same piece of wire, what is the
length of one side of the equilateral triangle?

8 cm

5 cm

4. The figure below is made by joining an isosceles triangle and an
equilateral triangle without any overlapping regions. Find the perimeter
of the figure.

8 cm

4 cm
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