Question

if the length of one side of a cube is 7 cm, what is the surface area of the cube? 294 cm² 343 cm² 98 cm² 49 cm²

Explanation:

Step1: Find area of one face

$\text{Area of 1 face} = 7 \times 7 = 49 \, \text{cm}^2$

Step2: Multiply by 6 (total faces)

$\text{Total surface area} = 6 \times 49 = 294 \, \text{cm}^2$

Answer:

294 cm²