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Mathematics page 94
The first question is trapezoidal area-rectangular area

The second question trapezoidal area+rectangular area+triangular area

The third question, this is already the Olympic Games. It is strange that the math teacher doesn't talk about it.

Question 4: Is the trapezoid area-(upper trapezoid-triangle with blank in the middle+lower trapezoid-small figure with blank) difference or sum?

Question 5: Rectangular area+triangular area