"Sarah and four friends", this means that we have a total of 5 persons.
They have four rolls of ribbon to share evenly.
1- This represents division as they have to equally divide four rolls among them.
2- The share of each can be calculated by dividing the four rolls they have by the five of them as follows:
share of each = 4/5 rolls = 0.8 rolls
Answer:
Step-by-step explanation:
a) A = ½(5 - -1)(5) = 15 units²
b) A = ½(4 - 2)(4) = 4 units²
c) A = ½(6 - -3)(3) = 13.5 units²
d) A = ½(4 - -1)(8) = 20 units²
