Perimeter (p) = 2*l+2*w = 2*10 + 2*5 = 20+10 = 30 cm
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The perimeter is: 1+10+1+10 = 22 cm
2 x (24 + 10)...68cm
If the perimeter is 32 sq cm, there is a very serious problem since the perimeter is a linear measure, not an area! Leaving that aside, the length of the rectangle is 10 cm and the breadth is 6 cm.
The answer is 12 cm.
Assuming the object is a rectangle, the perimeter is (2 x 7cm) + (2 x 10 cm) = 34cm