Answer:

Step-by-step explanation:
sine of A = 
opposite = 5
adjacent = 12
hypotenuse = 13
It would be bad A because when you round to the nearest tenth bags B,C, and D weigh 5.6kg while bag A weighs 5.7kg.
Answer:
Perimeter
Step-by-step explanation:
The answer: 9 and 10 or 8 and 9
8x8=64
9x9=81
10x10=100
They are close by 18 so If it’s only an answer I would go for 8 and 9