Answer to Question #237198 in Geometry for freebandz

Question

1) The angles of a pentagon are, x°, (x+20)°, (x-15)°, 2x°, (3x/2+30)°. Find x.

Answer 1

Task #237198

n=5 (5 angles) 

x°+(x+20)°+(x-15)°+2x°+3x/2 +30°=180°•(n-2) 

5x°+3x/2=540°-20°+15°-30°

13x°=1010

x°=77,69