Question

find the total surface area of a closed cardbox of length 0.5 cm breadth 25 cm and height 15 cm.​

Answer 1

Answer:

 4750 cm²

Step-by-step explanation:

Length l of cardboard box = 0.5 m = 50 cm

Breadth b of cardboard box = 25 cm

Height h of cardboard box= 15 cm

Total surface area of cardboard box

2 ( lb + bh + hl)

2 ( 50 × 25 + 25 × 15 + 15 × 50 )

2 ( 1250 + 375 + 750 )

 

2 ( 2375 )

4750 cm²

Answer 2

Step-by-step explanation:

Given details are, Dimensions of closed box = 25cm × 0.5m × 15cm = 25cm × 50cm × 15cm

We know that, Area of cardboard required = 2 (lb + bh + hl) cm2

2 (25×50 + 50×15 + 15×25) = 2 (1250 + 750 + 375) = 2 (2375) = 4750 cm2