Question

The angles of a pentagon are x degree ,(x-10),(x+20),(2x-44) and (2x-70g . Calculate x

Answer 1

The sum of all the internal angles of a pentagon = (5-2)180

= 540

By the problem :

x+(x-10)+(x+20)+(2x-44)+(2x-70) = 540

or, x+x-10+x+20+2x-44+2x-70 = 540

or, 7x-104 = 540

or, 7x = 540+104

or, x = 644/7

or, x = 92