About 450 books and articles Euler completed after he lost his sight entirely.
<h3>Who was Leonhard Euler?</h3>
Leonhard Euler was a mathematician from Switzerland. He introduced the fundamentals of graph theory and topology.
His main field of work includes number theory, mechanics, fluid mechanics, and many more.
The life span of Euler was between 1707 and 1783. In the last few years of his life, he lost the eye sight. But the eye sight loss doesn't affect him from doing his work. In his lifespan, he published around 886 books and articles on various fields or science, mathematics and engineering.
After the total blindness, he published more than 450 books and articles.
For more details about Euler, refer to the link:
brainly.com/question/573685
Answer:4(3)/(5)
Step-by-step explanation:
2,320,502 <=== Two million, three-hundred and twenty thousand five hundred and two
Vertex is located over the center of the base of a regular pyramid.
<h3>
What is Vertex Angle?</h3>
Vertex angle is defined as the angle formed by two lines or rays that intersect at a point. These two rays make the sides of the angle.
Here, Vertex is the point which is located over the center of the base of a regular pyramid.
Learn more about Vertex angle from:
brainly.com/question/2028172
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