Question

four angles of a Pentagon are 120°,100°,90° and110°.Find the fifth angle.

Answer 1

Answer:

120 degree

Step-by-step explanation:

Angle sum property of pentagon

Angle = a+b+c+d+e=540

120+100+90+110+e=540

420+e=540

e=540-420=120 degree

PLZ mark as brainliest!!

Answer 2

Answer:

Angle sum property of pentagon

Angle = a + b + c + d + e = 540°

• Where a , b , c , d , e are angles

120 + 100 + 90 + 110 + e = 540°

420 + e = 540°

e = 540 - 420 = 120°