Math, asked by insha64, 1 year ago

plz give a solution of question no.4 fast

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insha64: ya

insha64: nice to talk u

Answers

Answered by sarah27042

Answer:

Step-by-step explanation:

One face is 4 cm by 4 cm = 16 cm

4 faces are going to be hidden once the cubes are joined together so you will only be able to 14 faces.

16 x 14 = 224

Answer: 224cm^2

Hope this helps!

insha64: no dear that is wrong

insha64: wht xd

sarah27042: What did I do wrong

insha64: we have 3 cubes of 4cm ok then joined the cubes to make a cuboid then l=12 ,B=4 ,H=4. now, surface area of cuboid=2(lb+bh+hl)= 2(12×4+4×4+4×12)= 2(48+16+48)=2×112=224cm^2

Answered by akanksha135

Length of each side of cube=4cm

If 3 cubes are joined then it's length will become 4+4+4=12cm

But breadth and height will remain same.

So breadth=height=4cm

Surface area of cuboid=2(lb+bh+hl)

=2[(12×4)+(4×4)+(4×12)]

=2(48+16+48)

=2(112)

=224cm.

Hope this helps!

akanksha135: Thanks for the brainliest @insha64.

insha64: ur wlcm

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