Find the value of each numbered angle. Type only the value, do not type degrees.

1: 60

3: 60

2:120

4: 120

5: 30

6: 30

Step-by-step explanation:

4 is 120 bc the triangle 4 belongs to has 40 and 20 which means that 4 is 120  since the sum of triangle has to be 180.1 has a measure of 60 because the sum of 4 and 1 has to be 180. 1 and 3 have the same angle measure bc they are vertical angles. 3 is 60.2 is the vertical angle of 4, so it has the same measure with 4, 120.5 is 30 bc the 3 is 60+90+ angle 5=180 -> 150+angle5=180 -> angle 5=306 is 30 bc the 3 is 60+90+ angle 6=180 -> 150+angle 6=180 -> angle 6=30

A) for the n row: 22+(n-1)×6therefore,b) 100-22=78that means (n-1)×6=7878÷6=1313+1=1414th row has 100 seats