Question

In a pentagon having four angles 73. 97. 146. 138. Then fifth angel is

Answer 1

Step-by-step explanation:

The sum of angles in a regular polygon= (n-2)*180 where n is the number of sides. Therefore for pentagon it is (5-2)*180 = 540.

let the fifth angle be x.

therefore 73+97+146+138+x=540.

therefore 454+x=540

therefore x= 540-454=86

therefore the fifth angle is 86.