Step-by-step explanation:
surface area if pyramid=area of base+combined area of lateral faces.
area of base=8×8=64
combined area if lateral faces=area of one triangle:area=base×height
=8×12=96
Total surface area=64+96
=160m square
The mean is the average. the median is the middle number. to find the mean, add all the numbers in the list and divide it by how many numbers there are. add 2+ 11 + 11 + 11 + 12 + 12 + 13 + 14 + 14 + 15 and divide them by 10. that’ll be your mean. to find the median, place them all in number order. the middle number is your answer
Answer:
I think 9 is correct
if answer is correct then please mark me as brainlist
Answer:
66 in
Explanation:
the circumference can be calculated as:

Where d is the diameter and π is 22/7.
So, replacing the values, we get:

Therefore, the circumference is 66 in.