What is the volume of an equilateral triangular pyramid with a side length of 8 cm and an altitude of 12 cm?

256 cm³

Step-by-step explanation:

Here, V = (1/3)(area of base)(height), and the numbers here are

          V = (1/3)(64 cm²)(12 cm) = 256 cm³

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.