Question

in the adjoining figure, if ab parallel de, angle abc = 130° and angle cde = 85°, find a.

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Answer 1

Answer:

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Answer 2

Answer:

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Characteristics of Birds. Birds are endothermic and, because they fly, they require large amounts of energy, necessitating a high metabolic rate. As with mammals, which are also endothermic, birds have an insulating covering that keeps heat in the body: feathers.