Question

what is the number of sides of a regupar polygon having the given angle sum? 1)1980 degree​

Answer 1

Answer:

Step-by-step explanation: it has many side 8

Answer 2

⊕ANSWER⊕

Sum of interior angles  

S=(n−2)×180∘

where n is the number of sides of the polygon.

$S = (n-2)180\\1980 = (n-2)180\\n-2 = \frac{1980}{180} = 11\\n = 11 + 2 = 13\\n=13sides$