Chocolate bits makes candy bar in the shape of a trying in the prism. The prism is represented by the net given for packaging. The top and bottom are covered in gold foil and a faces are covered in red foil. How many centimeters two of red foil are needed for the candy bar
The net given for the packaging of the prism candy bar shows that there are 3 red faces - 2 rectangles and 1 triangle.
Let's calculate the total area of the two red rectangles and one red triangle:
1. Red rectangle:
Length = 5 cm
Width = 3 cm
Area of one red rectangle = Length x Width
Area = 5 cm x 3 cm = 15 cm²
Since there are two red rectangles, the total area of the two red rectangles = 15 cm² x 2 = 30 cm²
2. Red triangle:
Base = 5 cm
Height = 4 cm
Area of red triangle = (1/2) x Base x Height
Area = (1/2) x 5 cm x 4 cm = 10 cm²
Now, add the total area of the two red rectangles and one red triangle to find the total red foil needed:
Total red foil needed = Total area of the two red rectangles + Total area of the red triangle
Total red foil needed = 30 cm² + 10 cm² = 40 cm²
Therefore, 40 cm² of red foil are needed for the candy bar.