scale drawing of a rectangular room has a length of 18 inches and a width of 12 inches. if the scale for the drawing is 1 inch =21/2 feet, what is the permeter of the actual room

L = 18in * 2.5Ft/in = 45 Ft.

W = 12in * 2.5Ft/in = 30 Ft.

P = 2*45 + 2*30 = 150 Ft.

To find the actual perimeter of the room, we need to convert the measurements from the scale drawing to real-life measurements.

Given:
Length of the room in the scale drawing = 18 inches
Width of the room in the scale drawing = 12 inches
Scale: 1 inch = 21/2 feet

To convert the length and width from inches to feet, we can use the scale factor:

Length of the room in feet = (Length in the scale drawing) * (1 inch/21/2 feet)
= 18 inches * 21/2 feet/1 inch
= (18 * 21) / 2 feet
= 189 feet

Width of the room in feet = (Width in the scale drawing) * (1 inch/21/2 feet)
= 12 inches * 21/2 feet/1 inch
= (12 * 21) / 2 feet
= 126 feet

Now that we have the actual length and width of the room, we can calculate the perimeter.

Perimeter of the room = 2 * (length + width)
= 2 * (189 feet + 126 feet)
= 2 * 315 feet
= 630 feet

Therefore, the perimeter of the actual room is 630 feet.

To find the perimeter of the actual room, we need to determine the dimensions of the actual room using the given scale and then calculate the perimeter.

Given:
Length of the scale drawing = 18 inches
Width of the scale drawing = 12 inches
Scale: 1 inch = 21/2 feet

First, let's convert the dimensions of the scale drawing to the actual dimensions of the room using the given scale.

For length:
1 inch = 21/2 feet
18 inches = (21/2) * 18 feet
= 189 feet

For width:
1 inch = 21/2 feet
12 inches = (21/2) * 12 feet
= 126 feet

Now that we have the actual dimensions, we can calculate the perimeter of the room.

Perimeter = 2 * (Length + Width)
= 2 * (189 feet + 126 feet)
= 2 * 315 feet
= 630 feet

Therefore, the perimeter of the actual room is 630 feet.