Question

4.
Verify Euler's formula for the given figures.
cubodical pyramid
cuboid
cube
pyramid​

Answer 1

Answer:

$Euler's formula = F+V-E= 2</p><p>F= faces</p><p>V= vertices </p><p>E = edges</p><p>cuboid Prism= 6+8-12= 2</p><p>pentagonal= 7+10-15= 2</p><p>square= 5+5-8= 2</p><p>pyramid= 6+6-10=2</p><p>$

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Euler's formula = F+V-E= 2

F= faces

V= vertices 

E = edges

cuboid Prism= 6+8-12= 2

pentagonal= 7+10-15= 2

square= 5+5-8= 2

pyramid= 6+6-10=2

Answer 2

Answer:

for figure 1:

faces =6

edges=12

vertices=8

verification - f+v=e+2

6+8=12+2

14=14

hence, verified

for figure 2:

faces=9

edges=16

vertices=9

verification-f+v=e+2

9+9=16+2

18=18

hence, verified