Question

arithmetic reasoning
question 5 of
a square room has a 12 - foot long wall. what is the floor area?
a 24 sq. ft.
b 48 sq. ft.
c 140 sq. ft.
d 144 sq. ft.
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Explanation:

Step1: Recall square area formula

The area \( A \) of a square is given by \( A = s^2 \), where \( s \) is the length of a side.

Step2: Identify side length

For a square room, the length of a wall is the side length \( s = 12 \) feet.

Step3: Calculate area

Substitute \( s = 12 \) into the formula: \( A = 12^2 = 144 \) square feet.

Answer:

D. 144 sq. ft.