Vegeta was able to follow the fight by being able to sense the God power. He had every credit to become the God himself in the original situation but Goku wanted the fight. Vegeta was the only other full blooded Saiyan known left in the anime during Goku's power up.
In the manga, Vegeta learns to transform into Super Saiyan God (Red) simply by training with Whis, which means the ritual is not the only way to attain the form. In fact, the manga showed Vegeta using Super Saiyan God when fighting Goku Black. Goku also uses the form in his first fight against Hit, before going SSB.
Vegeta did learn Super Saiyan God. He learned it off screen in the anime and he learned it in the Manga.
The Super Saiyan Blue Evolved transformation is the result of a Super Saiyan Blue who has broken their own limits. Vegeta achieved this state in the Tournament of Power, during his battle with Jiren. It was unlocked when Vegeta remembered Cabba, and his strong desire to keep his promise to the young Saiyan.
It's literally Super Saiyan Blue 2, but they stuck with a fancier name “Evolution” instead. Vegeta said he was surpassing his limits, or “ascending” past the normal powers of Super Saiyan Blue in that form, which is literally what Super Saiyan 2 was all about back in DBZ.
To find the area of a circle, you need to use the formula A=π⋅r2 , therefore the area A is π⋅62≈113 square inches. To find the circumference of a circle, you will use the formula C=2⋅π⋅r , therefore the circumference C is 2⋅π⋅6≈38 inches.
Forever Stamps are currently worth 50¢ so, for instance, a two ounce flat 9x12 envelope would need $1.21 in postage … or three Forever stamps.