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05-02-2016
Mathematics

contestada

What is the area, in square units, of trapezoid ABDC which is formed by two triangles? A (-6,-7), B (-6,4), C (2,-7), and D (8,4).

Respuesta :

05-02-2016

1/2(a+b)xh=A
"half the sum of the parallel sides times the height between them"
1/2(8+14)x11=11x11=121

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