3 years ago

Is line AB tangent to the circle?

1 answer:

3 0

No. If AB is a tangent, it must be perpendicular to a radius of the circle. Stick the numbers into the Pythagorean Theorem to see if the angle of the intersection is a right angle.

a² + b² = c²

6.6² + 11² doesn't quite equal to 13²

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kozerog [31]

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Mr. Zelman wants to give 50% of his comic book collection to his nephew Alex. If Mr. Zelman has 800 comic books, then how many w

BARSIC [14]

Mr. Zelman gave 400 books to his nephew

Solution:

Given that, Mr. Zelman wants to give 50% of his comic book collection to his nephew Alex

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Thus he gave 400 books to his nephew

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