The rate would be 40 questions per hour
Answer:
yes it is because the second triangle is the base and the other three triangles are the sides of the three dimensional shape
5(a -2)
Djkajksnsj (gay panic because the answer he to be more the 20 characters)
The formula for interior angle sum is 180(n - 2).
Backtrack it from that.
180(n - 2) = 1980.
1980 / 180 = 11 = n - 2.
11 + 2 = 13 = n.
The polygon has 13 sides.
