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CBSE Class 8 Answered

If each edge of a cube is doubled, (1). how many times will its surface area increase ? (2). how many times will its volume increase?
Asked by amamta692 | 05 Mar, 2021, 04:37: PM
answered-by-expert Expert Answer
S u r f a c e space a r e a space o f space t h e space c u b e space S equals 6 a squared i f space t h e space e d g e space i s space d o u b l e d space t h e n space s u r f a c e space a r e a space w o u l d space b e space 6 open parentheses 2 a close parentheses squared equals 6 cross times 4 cross times a squared equals 4 S V o l u m e space o f space t h e space c u b e comma V equals a cubed n e w space V o l u m e equals open parentheses 2 a close parentheses cubed equals 8 a cubed equals 8 V h e c e space t h e space s u r f a c e space a r e a space i s space 4 space t i m e space t h e space o l d space s u r f a c e space a r e a space a n d space n e w space v o l u m e space w o u l d space b e space 8 space t i m e s space t h e space o l d space v o l u m e
Answered by Utkarsh Lokhande | 08 Mar, 2021, 01:47: PM

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CBSE 8 - Maths
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Asked by sohanbiswas692 | 20 Jan, 2024, 08:10: PM
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CBSE 8 - Maths
A covered wooden box has the inner 35 cm and thickness of wood as 2.5 cm. The volume of the wood is (a) 85c * m ^ 3 (b) 80000c * m ^ 3 (c) 82.125c * m ^ 3 (d) 84000c * m ^ 3
Asked by bhalendradheeraj | 06 Jan, 2024, 05:40: PM
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CBSE 8 - Maths
How much sand is needed to fill a pit that is 10 m deep, 8 m wide and 12 m long
Asked by harshitar380 | 21 Nov, 2023, 07:48: PM
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CBSE 8 - Maths
Melody is planning a raised bed for her vegetable garden. How many square feet of wood does she need to create the bed? Hint: There is no bottom on the bed
Asked by vashisthvaishali560 | 16 Mar, 2023, 11:34: AM
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CBSE 8 - Maths
If each edge of a cube is doubled, (1). how many times will its surface area increase ? (2). how many times will its volume increase?
Asked by amamta692 | 05 Mar, 2021, 04:37: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 8 - Maths
the side of a square hall is 15 m each.if square tiles of side 1 by 2 m each have to be used to pave the floor,how many tiles will be needed? these tiles are packed inside boxes.each box contains 100 tiles. how many boxes of tiles have to be purchased to cover the floor completely?   64 cubes of side 3 cm each are packed in a cubicle box to its full capacity.what is the length of the side of the cubicle box?what is its capacity?
Asked by Trisha Gupta | 04 Sep, 2019, 01:46: PM
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CBSE 8 - Maths
A rectangular shaped cake has the length 24cm breath 18cm and height 16 cm. This cake is cut into piece with a length 4cm breath 3 cm and height 2cm and distributes among students. A, find the volume of the cake? B. How many children will get the cake piece?
Asked by priyankas30396 | 20 Aug, 2019, 09:09: PM
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CBSE 8 - Maths
capacity of a cubical vessel of edge 40 cm is
Asked by rashshavan8 | 15 Jul, 2019, 12:41: PM
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CBSE 8 - Maths
Find  the height of a cuboid whose base area is 180 cmsq square and volume is 900cm cube?
Asked by abhirajlokhande | 15 Mar, 2019, 06:59: PM
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CBSE 8 - Maths
The dimension of iron almirah is 1m x 60cm X2m. IT has been divided in 4 compartments partitioned by three shelves made of 4cm thick wood.What is the volume
Asked by Nimmi | 28 Jan, 2019, 11:50: AM
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