we will use formula

where
theta is angle
n is number of sides
we are given
n=15
we can plug it

now, we can solve for theta



so,
option-D.........Answer
Answer:
2
Step-by-step explanation:
(4+6)/(5)
10/5
=2
Start by finding how many squares in both rooms are. 24 • 15 = 360 and 13 • 4 = 52 (since it is a square room multiply by 4) Now add. 360 + 42 = 412. Now multiply : 6.98 • 412 = 2875.76. The total cost of carpet for both rooms is $2875.76. Hope I helped!
It only has symmetry about the axis, that means that if i were to draw a line down the middle, the triangle looks the same on both sides. If it were split in half horizontally, it would not be symmetrical.