a small indoor greenhouse is made entirely of glass panes including base, held together with tape. It is 30 cm long, 25 cm by and 25 cm height.
(i) what is the area of the glass used?
(ii) how much of tape is needed for all the 12 edges?
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Answered by
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Given
Length =30cm
Breath=25cm
Height =25cm
The area of glass used=surface area of cuboid
=2(lb x bh x hl)
=2(30x25 + 25x25 + 25x30)
=2 (750+ 625+750)
=2x2125
=4250cm²
Tape will be used on the edges
As we know there is 12 edges in a cuboid
So total length of tape =length of all edges
=4(l+b+h)
=4(30+25+25)
=4x80
=320cm
This is ur ans hope it will help you in case of any doubt comment below
Length =30cm
Breath=25cm
Height =25cm
The area of glass used=surface area of cuboid
=2(lb x bh x hl)
=2(30x25 + 25x25 + 25x30)
=2 (750+ 625+750)
=2x2125
=4250cm²
Tape will be used on the edges
As we know there is 12 edges in a cuboid
So total length of tape =length of all edges
=4(l+b+h)
=4(30+25+25)
=4x80
=320cm
This is ur ans hope it will help you in case of any doubt comment below
Answered by
3
Hi dear here is your answer.
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