Find the number of sides of a polygon if each interior angle is 150°

12

Step-by-step explanation:

The interior angle and exterior angle sum to 180° , thus

exterior angle = 180° - 150° = 30°

The sum of the exterior angles of a polygon = 360° , thus

number of sides = 360° ÷ 30° = 12

s + (a + 178) = 2000

step-by-step explanation:

2000 - 178 = 1822

1822 / 2 = 911

911 + 178 = 1089

1089 + 911 = 2000

abha = 1089

shane = 911

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i