1. A small indoor aquarium is made entirely of glass panes (including top) held together with
tape. It is 30cm long, 25 cm wide and 25 cm high.
(i)What is the area of the glass?
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Step-by-step explanation:
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Given: Dimensions of herbarium:
l = 30 cm, b = 25 cm, h = 25 cm
i) Area of the glass=Total surface area of herbarium
= 2(lb + bh + lh)
= 2(30×25 + 25×25 + 25×30)
= 2(750+625+750)
=2×2125
= 4250cm²
(ii) herbarium in in the shape of cuboid.
So Length of the required tape will be equal to total length of edges of cuboid.
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