The three angles in a triangle have measures x, 3x, and 5x. Solve for x

Three angles of the triangle:

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3x + 5x + x = 180

9x = 180

x = 180/9

x = 20

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.