Answer:
16%
Step-by-step explanation:
Answer:
a.
b.
Step-by-step explanation:
a. You know that the dimensions of Rectangle A are
Since Rectangle B’s dimensions are (which is 0.6 cm) larger than Rectangle A’s dimensions, then the dimensions of Rectangle B are:
Since Rectangle C’s dimensions are (which is 0.6 cm) larger than Rectangle B's dimensions, then the dimensions of Rectangle C are:
The find the total area of all three rectangles you must add the products obtained when you multiply their dimensions. Then:
b. The perimeter of a rectangle can be calculated with this formula:
Where "l" is the lenght and "w" is the width.
Knowing the dimensions of each rectangleg, you can calculate the total perimeter as follows:
Then, if a 40-cm coil of wire was used to form the rectangles, the amount of wire that is left is: