(05.06)a chocolate bar measures 30 mm wide, 70 mm long, and four and one over two mm high. will’s wrapping company is making a wrapper to cover the chocolate bar. use the correct net and determine how much paper will be needed to make the wrapper.

Step-by-step explanation:

Given : A chocolate bar measures 30 mm wide, 70 mm long, and four and one over two mm high

To Find :  how much paper will be needed to make the wrapper.

Solution :

Length of chocolate bar = 70 mm

Width of chocolate bar = 30 mm

Height of chocolate bar =

Since chocolate bar in in the shape of cuboid

Total surface area of cuboid : 2(length*width+width*height+height*length)

Thus the wrapper required to wrap chocolate = 2(70*30+30*4.5+4.5*70)

                                                                          = 2100+135+315

                                                                          = 2(2550)

                                                                          = 5100 square mm

Hence  paper will be needed to make the wrapper.

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

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