Acube with a volume of 216 cm3 is cut down to a pyramid with the same size base and the same height as the original cube. what is the volume of the pyramid?
a. 108 cm3
b. 94 cm3
c. 72 cm3
d. 52 cm3

25/4

step-by-step explanation:

call segment cd's length x. because dc and ab are parallel, angle acd and cab, so triangles adc and abc are similar and we can set up the equation x / ac = ac / ab, or x / 5 = 5 / 4 and x = 25/4.

the answer is: the length is 5/6 yards.

give me a or a 5 star rating if this is correct!

step-by-step explanation:

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: