Question

Please can you solve this as I am confused ​

Answer 1

Answer:

1080 °

Step-by-step explanation:

S = (n - 2)×180°

= (8 - 2)×180°

= 6×180°

= 1080 °

n = number of sides

Answer 2

Answer:

1080

Step-by-step explanation:

lets take any shape with n sides

now lets take a point in inside the shape and draw triangles with each side serving as one base of the triangle

now we will have n triangles

sum of angles of all triangls = n * 180

if we subtract the central angle, we will have the sum of interior angles

the central ange is 360 ,so the sum of internal angles = n *180 -360

simplifying n * 180 -360 = 180(n-2)