Calculate 36263

Calculate the surface area and volume of a regular 4-sided pyramid with a base edge of a = 12 cm and a height of v = 5 cm

Correct answer:

V =  240 cm3
S =  331.446 cm2

Step-by-step explanation:

a=12 cm h=5 cm  S1=a2=122=144 cm2  V=31 S1 h=31 144 5=240 cm3
h2=h2+(a/2)2=52+(12/2)2=61 cm7.8102 cm  S2=2a h2=212 7.8102=6 61 cm246.8615 cm2  S=S1+4 S2=144+4 46.8615=331.446 cm2

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