Question

try this. This is from math express class 8 textbook pg:-151​

Answer 1

Answer:

Step-by-step explanation:

WE know

sum of all angles of a pentagon = 540 degree

angle EAB = 180-60 = 120 degree

angle CBA = 180-70 = 110 degree

therefore,

120+110+30+x+x = 540

260+2x = 540

2x = 540-260 = 280

x = 280/2

x = 140 degree