2.1.3 The block of wax is wrapped in a sticky plastic. The plastic wrap required to cover the entire Surface area of a block will include \( 20 \% \) of overlap. (a) Calculate the area of the plastic which will be required. (b) If a plastic wrap is sold at \( \mathrm{R} 1,20 / \mathrm{m}^{2} \), determine the total cost of plastic required
Upstudy AI Solution
Answer
Solution
Answered by UpStudy AI and reviewed by a Professional Tutor
Explain 
Simplify this solution Beyond the Answer
To determine the area of the plastic required to wrap the block of wax, we’ll first need to calculate the surface area of the block and then add 20% for overlap. Assuming the block of wax is in the shape of a rectangular prism with dimensions a, b, and h, the surface area (SA) can be calculated using the formula: \[ \text{SA} = 2(ab + ah + bh) \] After assessing the surface area, we add 20% overlap: \[ \text{Total Area} = \text{SA} \times 1.2 \] Next, for the total cost of the plastic, multiply the total area calculated by the cost per square meter: \[ \text{Total Cost} = \text{Total Area} \times \mathrm{R} 1.20 \] This calculation ensures that you have enough plastic to cover the block securely while accounting for any necessary overlap.
