I think it is givin. But I’m am not 100% sure
Answer:0.0001333
Step-by-step explanations :
20x+50=450
-50 -50
20x=400
Divide both sides by 20
X=20
Answer:
360 degrees
Step-by-step explanation:
The sum of exterior angles of a heptagon is 360 degrees. For regular heptagon, the measure of the interior angle is about 128.57 degrees. The measure of the central angle of a regular heptagon is approximately 51.43 degrees. The number of diagonals in a heptagon is 14.
