Question

who to solve this question step by step

Answer 1

l= 1.5 m

b= 1.25 m

h= 65 cm or 0.65 m

1.Area of the plastic box = 2(lb + bh +hl)

lb+2bh+2hl ( as the box is opened at the top)

(1.5 × 1.25+2×1.25× 0.65 + 2 × 0.56× 1.5)

5.45 m²

2. Cost of 1 m² sheet = 20/-

Cost of 5.45 m² sheet = 5.45×20

Rs. 109/-