4) En el triángulo abc, el lado ab = 18 mm, bc = 12 mm. La bisectriz del ángulo exterior correspondiente al vértice b, corta a ac en el punto p, tal que ap = 36 mm. Calculá el lado ac.

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Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c