calculate the total area of the walls of a room 5m long 4m wide and 2.5m high
total length of walls = 5 + 5+ 4 + 4 = 18 meters
height = 2.5
area = height * length = 2.5 * 18 m^2
A = 2(L*h) + 2(h*W)
A = 2(5*2.5) + 2(2.5*4) = 45 m^2.
To calculate the total area of the walls in a room, you need to calculate the area of each wall individually and then add them together.
Step 1: Calculate the area of the first wall (5m long and 2.5m high):
Area = Length × Height
Area = 5m × 2.5m
Area = 12.5 square meters
Step 2: Calculate the area of the second wall (5m long and 2.5m high):
Area = Length × Height
Area = 5m × 2.5m
Area = 12.5 square meters
Step 3: Calculate the area of the third wall (4m wide and 2.5m high):
Area = Width × Height
Area = 4m × 2.5m
Area = 10 square meters
Step 4: Calculate the area of the fourth wall (4m wide and 2.5m high):
Area = Width × Height
Area = 4m × 2.5m
Area = 10 square meters
Step 5: Add up the areas of all four walls:
Total Area = Area of Wall 1 + Area of Wall 2 + Area of Wall 3 + Area of Wall 4
Total Area = 12.5 square meters + 12.5 square meters + 10 square meters + 10 square meters
Total Area = 45 square meters
Therefore, the total area of the walls in the room is 45 square meters.
To calculate the total area of the walls, you need to find the area of each wall and then add them together.
First, let's determine the dimensions of each wall.
The room is 5 meters long (L), 4 meters wide (W), and 2.5 meters high (H).
There are four walls in a room: two shorter side walls (S1 and S2) and two longer walls (L1 and L2).
The area of each wall can be calculated using the formula: Area = Length × Height.
For the shorter side walls:
S1 = L × H
S1 = 5m × 2.5m
S1 = 12.5 square meters
S2 has the same dimensions, so its area would also be 12.5 square meters.
For the longer walls:
L1 = W × H
L1 = 4m × 2.5m
L1 = 10 square meters
L2 has the same dimensions, so its area would also be 10 square meters.
Now, let's calculate the total area by adding the areas of all four walls together:
Total area = S1 + S2 + L1 + L2
Total area = 12.5 square meters + 12.5 square meters + 10 square meters + 10 square meters
Total area = 45 square meters
Therefore, the total area of the walls in the given room is 45 square meters.