The area of deltoid is defined by formula:

Where e and f are diagonals.
If you were to double the size of either one. Let's say f. You would result with:

Which means if either of diagonals double in length the area of deltoid will be twice as big as it was before.
Hope this helps.
r3t40
Answer:
160 plastic cubes
Step-by-step explanation:
first find the volume the box can hold so,
4 x 2.5 x 2 = 20ft^3
from their find the volume of each plastic cube so,
.5 x .5 x .5 = .125ft^3
then you can divide the volume of the box by the volume of the plastic cube to see how many will fit
20 ÷ 0.125 = 160 plastic cubes
Answer:
Question four is C, question five is also C, and question three is 36 I think