Circular based pyramid I believe
Answer: x = 7
Step-by-step explanation:
Subtract both sides by 3
X+3-3 = -4 - 3
X+0 = -7
X=-7
Here's 2 (almost) equations:
m<1 = m<3
m<1 + m<2 + m<2 + m<3 = 360
I got the first one because angle 1 and 3 are on opposite sides, so they must be equal. I got the second one because 2 and (unlisted) 4 must be equal, and all of the angles added must be 360.
The answer is an estimate of about 943.36 feet.