Question

here are the nets of three cardboard boxes that are rectangular prism the boxes will be packed with 1 centimeter cube all lengths are centimeters Find the surface area

Answer 1

the surface area = 42cm²

Explanation:

We apply the formula for surface area of rectangular prism:

Area = l * w + l*h + l* w + h * l + w * h + w * h

Area = 3cm × 2cm + 3cm×3cm + 2cm× 3cm + 3cm×3cm + 3cm × 2cm + 3cm × 2cm

Area = 6cm² + 9cm² + 6cm² + 9cm² + 6cm² + 6cm²

Area = 42cm²

Therefore, the surface area = 42cm²