Answer:
x=2,−4 hope this was help full
Answer:

Step-by-step explanation:

Hope this helps!
Answer: The last answer is correct
Step-by-step explanation:
BAC and BCA are the same because A=70 degrees B=70 degrees.
if the top looks exactly like the bottom or vise versa, its the same degree.
Answer:

Step-by-step explanation:
The figure given above is a square pyramid, having a square base and 4 triangular faces on the sides that are of the same dimensions.
Surface area of the square pyramid is given as: 
Where,
B.A = Base Area of the pyramid = 9*9 = 81 in²
P = perimeter of the base = 4(9) = 36 in
L = slant height of pyramid = 9.2 in
Plug in the values into the given formula to find the surface area



