Understanding Dimensions and Surface Area

What is the first dimension discovered for the cut-out piece?

• 10 cm

• 6 cm

• 15 cm

• 20 cm

What is the calculated area of the cut-out piece?

• 960

• 600

• 720

• 840

What is the final dimension calculated for the cut-out piece?

• 12 cm

• 14 cm

• 6 cm

• 10 cm

How does the surface area of the original rectangle change after the cut-out?

• It increases

• It doubles

• It decreases

• It remains the same

Why does the surface area remain unchanged after the cut-out?

• Because the cut-out is added back

• Because the volume changes

• Because the cut-out is too small

• Because surface area is calculated differently