Question

a box which measure 70cm× 36cm× 12cm is to be covered with canvas how many meters of canvas of width 80cm would be required to cover 150 such boxes ​

Answer 1

Step-by-step explanation:

cuboid formula to solve this example .

l×b×h

Answer 2

QUESTION:-

a box which measure 70cm× 36cm× 12cm is to be covered with canvas how many meters of canvas of width 80cm would be required to cover 150 such boxes

ANSWER :-

➠ LET

• length of the box → l
• breadth of the box → b
• height of the box → h

➠ SO

• l → 70 cm
• b → 36 cm
• h → 12 cm

Area of canvas needed to cover 150 boxes

➠ 150 × Total surface area of the box

➠ 150 × [2(lb + bh + hl)]

➠ {150 × [2(70 × 36 + 36 × 12 + 12 × 70)]} cm²

➠ {150 × [2(2520 + 432 + 840)]} cm²

➠ {150 × [2(3792)]} cm² = (150 × 7584) cm²

➠ 1137600 cm²

➠ Width

→ 80 cm

Length of canvas needed

$➠ \frac{1137600}{80} cm$

$➠ \frac{1137600}{80 \times 100} m$

➠ 142.2 m