Answer:
can you please give more info
Step-by-step explanation:
Step-by-step explanation:
Area1=4×3=12cm²
Area2=6×3=18cm²
Area3=(6+3)×(12+4)=9×16=144cm²
Total area = area1 + area2 + area3
Total area= 12+ 18+144=174cm²
Answer:
The union of A and B is the set of all those elements which belong either to A or to B or both A and B. Now we will use the notation A U B (which is read as 'A union B') to denote the union of set A and set B. Thus, A U B = {x : x ∈ A or x ∈ B}.