Maria wants to make an open cuboid box 10 cm long 5 m wide 3 cm high from cardboard. Find the cost of the cardboard at the rate of 50 Paisa per cm ²
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Step-by-step explanation:
l= 10cm
b = 5cm
h = 3cm
cost of the cardboard required to make the open cuboidal box.
so we will use CSA + 1 base formula.
CSA + 1 base of the cuboidal box = 2h (l + b) + lb
= 2 × 3 (10 + 5) + (10 × 5)
= 6 (15) + 50
= 90 + 50
= 140cm²
cost of cardboard @ of 0.5 rupees (50 Paisa) per cm² = 140 × 0.5= ₹70
please brainlest mark
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