Which formula should be used to find the area of the composite shape?

The last option seems the best one: the figure is composed of a square/rectangle and a triangle. The area of the rectangle is the product of its dimension (i.e. ), while the area of the triangle is half the product of the base and height ().

The sum of the two areas is the area of the composite shape.

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step-by-step explanation:

1+2+3+4+5+6+7+8+9+10 = 55

2*10 = 20

55-20 = 35

the answer is a if my teacher taught me correct