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The perimeter of a triangle is the sum of lengths of each side. So the perimeter would be 13 cm + 13 cm +10 cm = 36 cm
19 cm.
1 cm = 10 mm, so 13 cm = 130 mm.
2m 13 cm
Any shape with such an area will do, for example: Draw a rectangle 1 cm wide and 47 cm long; Draw a rectangle 4.7 cm wide and 10 cm long; Draw an L shape with side lengths (going clockwise from the top) 1 cm, 19 cm, 13 cm, 2 cm, 14 cm, 21 cm.