Question

what is the surface area? 9 in 9 in 9 in square inches submit

Explanation:

Step1: Find area of one face

$\text{Area of 1 face} = 9 \times 9 = 81$ square inches

Step2: Multiply by 6 (cube has 6 faces)

$\text{Total surface area} = 6 \times 81 = 486$ square inches

Answer:

486