Answer:

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 = 
Wouldn’t be 0 because that’s where the line cross the middle line
A) 14.66
Arc length is equal to radius multiplied by the central angle in radians not degrees
Answer:
B I guess is the answer
Step-by-step explanation:
I'm not really sure