Question

1. A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is opened at the
top. Ignoring the thickness of the plastic sheet, determine:
The area of the sheet required for making the box.
(ii) The cost of sheet for it, if a sheet measuring 1m² costs rs 20.
(1)​

Answer 1

Answer:

1)T.S.A of the cuboid= lb+2bh+2hl

=(1.5×1.25+2×1.25×.65+2×.65×1.5)

=(1.875+1.625+1.95)

=5.45

part 2

1m²cost ₹20 =5.45

= 5.45×20

=109 m²

it is your correct answer

please mark me brainly lest