The perimeter of a rectangular window is . If the width of the window is , what is its length?
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Area of bed room = length x width

                             =  4cm x 8cm

                             = 32 cm^2.

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.