Answer:
Box 1 question 1: 3:2.5
Box 2 question 2 : 3:5
Step-by-step explanation:
Q3.15:25
45:75
Q8. 0.5×6×11=33(old triangle )
0.5×12×11=66
66/33=2
The area became doubled.
Q9. 9×8=72(old)
27×8=216
216/72=3
The area became three times
Q10. pie×12×12:pie×32×32
