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maw [93]
3 years ago
10

La medida de cada ángulo interno de un polígono regular es 140o. Determine la medida de cada ángulo central.

Mathematics
1 answer:
almond37 [142]3 years ago
4 0

Answer:

Cada ángulo central tiene una medida de 40°.

Step-by-step explanation:

Un ángulo interno en un polígono regular comprende dos ángulos contiguos de igual medida de dos triángulos contiguos. Si el polígono regular tiene un ángulo interno de 140°, entonces cada triángulo tiene dos ángulos de 70°. El tercer ángulo corresponde al ángulo central. Por Geometría sabemos que la suma de las medidas de los ángulos internos de un triángulo es igual a 180°, entonces tenemos que la medida del ángulo central es:

\alpha = 180^{\circ} - 70^{\circ} - 70^{\circ}

\alpha = 40^{\circ}

Cada ángulo central tiene una medida de 40°.

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