Answer: 30
Step-by-step explanation:
If we were to draw diagonal BD, then we would create two congruent triangles, and we could find the area of each using the formula
.
However, since there are two triangles, we can double this, giving us
.
So, the area is 
Answer:
Sorry
Step-by-step explanation:
I don't know the answer
Answer:
421.875
Step-by-step explanation:
because the formula of the rectangular prism is l*w*h
area of the parallelogram is: b x h
12 x 4 = 48 (d)