On a sphere, the interior angles of a triangle add up to ________ ...

[mcmcdaniel]

On a sphere, the interior angles of a triangle add up to ________ 180 degrees.
 
  Fill in the blank(s) with correct word

Question 2

All the following statements are true. Which one explains the reason that there is not a solar eclipse at every new Moon?
 
  A) The nodes of the Moon's orbit precess with an 18-year period.
  B) The orbital plane of the Moon is tilted slightly (by about 5 degrees) to the ecliptic plane.
  C) The Moon is only about 1/4 as large as Earth in diameter.
  D) The Moon goes through a complete cycle of phases about every 29 1/2 days.

[Melissahxx]

Answer to Question 1

less than

Answer to Question 2

B

[mcmcdaniel]

Thanks for the timely response, appreciate it

[Viet Thy]

Gracias!