Answer :
Final answer:
The area Aisha needs to paint is determined by calculating the area of all four walls, and then subtracting the area of the door. The calculated area is found to be 43.76 m², which is not an option given in the question, possibly indicating a mistake.
Explanation:
To find the total area that Aisha needs to paint, we first need to determine the area of all four walls of the living room. Each wall is 2.7 m high and 4.2 m long. Therefore, the area of each wall is height * length = 2.7 m * 4.2 m = 11.34 m². As there are four walls, the total area is 4 * 11.34 m² = 45.36 m².
Next, we subtract the area of the door from this total because Aisha won't paint the door. The door is 2 m by 0.8 m, so its area is 2 m * 0.8 m = 1.6 m².
Subtracting the area of the door from the total area of the walls gives 45.36 m² - 1.6 m² = 43.76 m². So the answer is 43.76 m², which is not in the options given A) 50.4 m², B) 71.4 m², C) 75.6 m², D) 100.8 m². Therefore, there seems to be a mistake in the question.
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