Question

A plastic box 1.5m long 1.25m wide and 65cm deep is to be made. It is opened at the top. ignoring the thickness of ghe plastic sheet, determine;

(i) the area of the sheet required for making the box.

Answer 1

HEY MATE HERE IS YOUR ANSWER

➡️ Length = 1.5 m
➡️ Breadth = 1.25m
➡️ Height = 65 cm
➡️ First convert it in m
65/100= 0.65 cm

Now it is opened at top
So, formula used

Area of 4 walls + ceiling = 2h(L + B) + L × B

PUT value in formula
➡️ 2 × 0.65( 1.5 + 1.25) + 1.5 × 1.25

➡️ now remove points

➡️
$2 \times \frac{65}{100} ( \frac{15}{10} + \frac{125}{100} ) + \frac{15}{10} \times \frac{125}{100}$
➡️ 1. 82 + 1.875
➡️ 0.02057 cm

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HOPE IT WILL HELP YOU

Answer 2

Hi dear here is your answer.