En la figura, ¿A qué altura está la ventana más alta si la escalera tiene una longitud de 5 m y se apoya en el suelo a 2 m de la pared

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is