Respuesta :

In the first figure angles (D and B) and (A and C) are both equal to each other and a quadrilateral must add up to 360 degrees, so angle (A and C) and (D and B) are supplementary angles. And angles g and f are complementary angles only if E = 90 degrees

Answer:

In the first figure angles (D and B) and (A and C) are both equal to each other and a quadrilateral must add up to 360 degrees, so angle (A and C) and (D and B) are supplementary angles. And angles g and f are complementary angles only if E = 90 degrees

Step-by-step explanation:

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