Question

what is the surface area? 15 in 15 in 15 in square inches

Explanation:

Step1: Find area of one face

$\text{Area of 1 face} = 15 \times 15 = 225$ square inches

Step2: Multiply by 6 (total faces)

$\text{Total surface area} = 6 \times 225 = 1350$ square inches

Answer:

1350