Respuesta :

Answer:

572

Step-by-step explanation:

averixmpoy

Answer:

572 m

Step-by-step explanation:

step 1: find area of big box

23 m x 34 m = 782 m

step 2: find area of small box

21 m x 10 m = 210 m

step 3: subtract small box area from big box area to get shaded region

782 m - 210 m = 572 m