There is a football field. Around the field is the section of a spectator. The edge of the football field is 5 meters distance from the outside edge of the section of the spectator. The section of the viewer is 130m in length and has a width of 85m. The use of these measures is the area of the football field.
If I read your language correctly, there is a 5m border around the field.
So, if the dimensions of the whole area is 130x85, then the field is 120x75.
To find the area of the football field, you need to subtract the area of the spectator section from the total area of the rectangular space defined by the outer edges of the spectator section.
First, let's find the area of the spectator section. The length of the section is given as 130 meters and the width is given as 85 meters. So, the area of the spectator section can be calculated by multiplying these two dimensions: 130m * 85m = 11,050 square meters.
Now, let's find the total area of the rectangular space defined by the outer edges of the spectator section. The width of the spectator section is 85 meters, and we know that the football field is 5 meters inside the edges of the spectator section. So, the width of the rectangular space will be the sum of the spectator section's width and the distance between the spectator section and the football field: 85m + 5m = 90 meters.
Similarly, the length of the rectangular space will be the sum of the spectator section's length and the distance between the spectator section and the football field: 130m + 5m = 135 meters.
To find the total area, we can multiply the length and width of the rectangular space: 135m * 90m = 12,150 square meters.
Finally, to find the area of the football field, we subtract the area of the spectator section from the total area of the rectangular space: 12,150 square meters - 11,050 square meters = 1,100 square meters.
Therefore, the area of the football field is 1,100 square meters.