Question

the measures of our four angles of a quadrilateral (2x +10)degree , (3x+15)degree , (4x-30)degree , (2x-20)degree respectively . then find the measure of the smallest exterior angle of it.​

Answer 1

Answer:

x=35

Step-by-step explanation:

sum of all angles of quadrilateral is 360

360=2x+10+3x+15+4x-30+2x-20

      =11x-25

therefore, 360+25=11x

385=11x

x=35