Regular quadrangular pyramid

The height of the regular quadrangular pyramid is 6 cm, the length of the base is 4 cm. What is the angle between the ABV and BCV planes?

Correct result:

x =  36.8699 °


h=6 cm a=4 cm  s1=a/2=4/2=2 cm s2=s12+h2=22+62=2 10 cm6.3246 cm  tanx/2=s1/h  x=2 180πarctan(s1/h)=2 180πarctan(2/6)=36.8699=365212"

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