Question

conta A cubical box has each edge 10 cm and another cuboidal box is 12.5 cm long, 10 cm wide and 8 cm high. ( Which box has the greater lateral surface area and by how much? ( Which box has the smaller total surface area and by how much? entirely of glass manes including

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Answer 1

Answer:

conta A cubical box has each edge 10 cm and another cuboidal box is 12.5 cm long, 10 cm wide and 8 cm high. ( Which box has the greater lateral surface area and by how much? ( Which box has the smaller total surface area and by how much? entirely of glass manes including

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Answer 2

(i) Lateral surface area of cube = 4edge
2

=4(10)
2

=400
​

lateral surface area of cuboid =2h(l+b)
2×8(12.5+10)
=16×22.5
=360
​

So, the lateral surface area of the cube is larger by (400−360=40)cm
2


(ii) Total surface area of cube = 6edge
2

=6(10)
2

=600
​

lateral surface area of cuboid =2(lb+bh+hl)
2(12.5×10+10×8+8×12.5)
=2(125+80+100)
=610
​

So, the total surface area of cuboid is larger by (610−600=10) cm
2

Thank you