R S T (-4.5, -3) P (3.5, 0) (-2, 4) (4, 6.5)​

Here's link to the

cutt.ly/nz6VGda

answer: the common difference is -0.10

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.