Question

only give answer of 10and11 and get 30 point on the spot the best answer will be marked brainliest also ❤(◍•ᴗ•◍)❤​

Answer 1

Answer:

10. If the interior angle is 180 deg, each exterior angle = 180–180 = 0 deg. So the number of sides of the polygon = 360/0 = infinite.

11. Explanation:

The sum of the interior angles in a regular polygon with  

n

sides is found through the formula

180 ( n − 2 )

Here,  n = 20

, so the sum of the interior angles is

180 ˚ (20 − 2 ) = 180 ˚ ( 18 ) = 3240 ˚

To find just one angle, divide  3240 ˚  by  20  since all  20 angles are congruent.

3240 ˚/20 = 162 ˚