Pyramid Surface Area = (½ * Perimeter of Base * Slant Height) + Base Area
Base perimeter = 4 * 18 = 72 inches
Base Area = 18*18 = 324 square inches
Pyramid Surface Area = (.5 * 72 * 12) + 324
Pyramid Surface Area = 432 + 324
Pyramid Surface Area = 756 square inches
Source:
http://www.1728.org/volpyrmd.htm
Answer:
What is it rounded up to???
Step-by-step explanation:
One of the closest answers would be 3.010
Answer: w- width
18=2(6+w)
18=12+2w
18-12=2w
6=2w
W=3 meters
Step-by-step explanation:
