Answer:
area of trapezium:
a+b divided by 2, times by the height.
so its 8+20=28.
28/2=14.
14*14=196.
area=196
Step-by-step explanation:
Area of any triangle is:
A = height * base / 2
She can fill 9 boxes, and will have 4 cookies left over.
9 x 12 = 108.
112 - 108 = 4
