Q345and Q678 urgent pls
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answer 3=5
answer 4=6
answer 5 =5
answer6=eulers formula = face +vertices-edges=2
in a rectangular prism edges=12
faces=6
vertices=8
so it is clear by it that
6+8-12=2 hence verified
answer7=faces=5
edges=8
vertices=5
answer8a=4+12-x=2 so edges =14
8b=5+x-8=2 so vertices=5
8c=x+3-2=2 so faces =1
answer 4=6
answer 5 =5
answer6=eulers formula = face +vertices-edges=2
in a rectangular prism edges=12
faces=6
vertices=8
so it is clear by it that
6+8-12=2 hence verified
answer7=faces=5
edges=8
vertices=5
answer8a=4+12-x=2 so edges =14
8b=5+x-8=2 so vertices=5
8c=x+3-2=2 so faces =1
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