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Assuming the object is a rectangle, the perimeter is (2 x 7cm) + (2 x 10 cm) = 34cm
Perimeter = 7+7+4+4 = 22 cm
Use Pythagoras' theorem to find the hypotenuse which works out as 25cm Perimeter = 25+24+7 = 56cm
7 + 7 + 7 + 7 = 28 cm
Find the perimeter of a figure with these for sides 3cm,5cm,7cm, and 4,cm