Question

Find the length of the base of a rectangular pyramid that has a volume of 560 mm3
, a height of 8 mm, and the base has a width of 14 mm.(1 point)
Responses

1,680 mm

1,680 mm
- no response given

55 mm

55 mm
- no response given

15 mm3

15 mm3
- incorrect

210 mm2

Answer 1

Volume V = (1/3)(base area)·height = (1/3)(14·L)·8 = (112/3)·L.

Set (112/3)L = 560 → 112L = 1680 → L = 1680/112 = 15 mm.

Answer: 15 mm.