5.1 cm , 28.4cm, 27.9cm , 30.5cm . How much wrapping paper is needed to wrap toy ?

To find out how much wrapping paper is needed to wrap the toy, you need to calculate the total surface area of the toy.

Assuming the toy is shaped like a rectangular prism, the surface area formula is:
Surface Area = 2(length x width) + 2(length x height) + 2(width x height)

Given the dimensions:
Length = 5.1 cm
Width = 28.4 cm
Height = 27.9 cm

Surface Area = 2(5.1 x 28.4) + 2(5.1 x 27.9) + 2(28.4 x 27.9)
Surface Area = 2(144.84) + 2(142.29) + 2(792.36)
Surface Area = 289.68 + 284.58 + 1584.72
Surface Area = 2158.98 cm²

Therefore, approximately 2158.98 cm² of wrapping paper is needed to wrap the toy.