Find the volume of a pyramid with a square base, where the perimeter of the base is 12.8 m and the height of the pyramid is 12.5 m. Round your answer

to the nearest tenth of a cubic meter.



m3

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Step-by-step explanation:

Given: Perimeter of base of a pyramid = 12.8 m

Height of the pyramid = 12.5 m

To find: volume of a pyramid

Solution:

Perimeter of base of a pyramid = 12.8 m

As base of the pyramid is a square,

12.8 =

side of a square =

Area of a square (A) =

Height of the pyramid (h) = 12.5 m

Volume of the pyramid =

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

the diameter is 16 cm. are you a teacher?

step-by-step explanation: