This all depends on the type of the shape given. There is no way to determine the exact area of the shape.
If the shape is a rectangle with that dimension, then A = length x width = 64 cm x 36 cm = 2304 cm²
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64cm.
It is: 4*2 = 8 square cm
The rectangle has dimensions of [ 12 x 3 ].
ok if the perimeter is 36cm and it is a square then you know all four sides are equal 36cm / 4sides = 9cm for each side A = L * W ( both the length and width are 9cm because each side is equal ) A = 9cm * 9cm A = 81cm2
Largest area = pi*182 = 1017.876 square cm to 3 dp