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hint: the triangles ABC and ADC are right triangles
okay so AD = 3 in and BC = 2 in and their final side is 13?
|dw:1430106317939:dw|
parallelogram
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those triangles, are congruent each other, since, in addition, they have one side equal to the radius of your circumference
so the perimeter is 10 inches?
that's right!
yes perimeter is 10
and is it a parallelogram ?
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no try again the sides arent parallel
no it is not, since, by definition, a parallelogram has parallel sides congruent each other
rhombus
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