They have the same number of angles and sides, the sides create the angles, therefore making them have the same amount.
<em><u>Monday, 13 September</u> met Gala was held in 2021</em><em>.</em>
It depends what they are talking about.
If they are talking about the bombing of 9/11 then the tone would be serious, sad, mad at the other country for doing what they did.
But, if they are talking about a major- fun holiday- like Halloween then the tone would happy, excited, energetic! It just depends what the topic the author is talking about!!
Hoped this helped you! :))