En un grupo de 30 niños se ha medido el peso en kilogramos, los resultados se representaron en el siguiente histograma. Construye el polígono de frecuencias
correspondiente.

110

step-by-step explanation:

based on the question i am guessing that it is a typo for abc

mn=6 and xz=17.5

angle z

the area of the piece of paper =   27- inch square.

so, the length of the square piece of paper = = .

the side of the triangle cut = =

also the side of the small square cut =

so, the area of each triangle cut = 1/2 * .

so, the area of 4 triangles cut =

area of a small square cut =

total area of 4 triangles cut and a small square cut = 6+3 = 9 square inches.

reaming area of the octagonal window   = 27 - 9 = 18 square inches.