This models the activity flow ground water because it allows you to see how the water seeps to the ground into the aqua fire and then
into ground soil which then becomes ground water. The holes
represent the openings from the soil from the upper ground to the
aquifer to the groundwater.

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

this is answer of 144 cubic meters