Answer:
The word "precocious" means gifted.
Supplementary means that the measures add up to be 180, so the measurement of the second angle would be 140.
Hope this helped!
There are so many examples for that in different areas, like biology experiment carried out in our lab recently.
Here's one link : https://www.creative-biogene.com/Services/Biosimilar-Cell-Line-Development.html
I believe the first answer is 140 w. The second is elastic potential energy.
