Maya is buying a new desk for her room. She creates a map with the coordinates A(−1,7) , B(1,7) , C(1,−1) , and D(−1,−1) . Each unit on the coordinate plane represents 1 foot. Find the perimeter of her room to help her determine how big of a desk Maya can buy.(1 point)

1 answer

To find the perimeter of Maya's room, we need to add up the lengths of all four sides.

The distance between points A and B is 2 units (1 foot each), since they have the same y-coordinate but different x-coordinates.

The distance between points B and C is 8 units, since they have the same x-coordinate but different y-coordinates.

The distance between points C and D is 2 units, since they have the same y-coordinate but different x-coordinates.

The distance between points D and A is 8 units, since they have the same x-coordinate but different y-coordinates.

Adding these up:
2 + 8 + 2 + 8 = 20

Therefore, the perimeter of Maya's room is 20 feet.