I am literally so confused please help (i highlighted the triangle by mistake)

The total area = 850 sq ft

The sub area of the square = 100 sq ft and the trapezoid = 750 sq ft.

Step-by-step explanation:

Given:

The diagram consist of two figure, a trapezoid ( green border)

To find:

The total area.

Formula

The area of square = side × side sq unit

The area of trapezoid = sum of the parallel sides × height

Now,

The area of square = 10 × 10 sq unit = 100 sq ft

The area of trapezoid  = (10 + 20) × 25 sq unit

                                     = 750 sq ft

So, the total area can be given as  = 100 + 750 sq ft

                                                          = 850 sq ft

hope this !

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