The cross-sectional area parallel to the bases of the two figures above is the same at every level. find the volume of the cone, to the nearest tenth. a. 26.5 cm3 b. 44.2 cm3 c. 79.5 cm3 d. 132.5 cm3

B.  44.2 cm3

Step-by-step explanation:

we know that

If the cross-sectional area parallel to the bases of the two figures above is the same at every level

then

the area of the base of the triangular pyramid is the same that the area of the base of the cone

step 1

Find the area of the base of the pyramid

step 2

Find the volume of the cone

The volume of the cone is equal to

we have

substitute

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

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step-by-step explanation: