Homework Help: Math-geometry

Posted by PLEASE HELP on Saturday, March 9, 2013 at 11:59pm.

. If a spherical Triangle on Earth has an excess of 30 degrees, find the area of this spherical triangle measured in square miles.
b. If a spherical triangle on the moon has an excess of 30 degrees, find the area of this spherical triangle in sqare miles.
c. Find the ratio of the above answers to a and b.

Math-geometry - bobpursley, Sunday, March 10, 2013 at 12:06am
area=sphericalExcessinRadians*radius^2

a. area=PI/6*re^2

b. area=PI/6*rm^2

c. (re/rm)^2
Math-geometry - PLEASE HELP, Sunday, March 10, 2013 at 12:10am
Confused? What does that mean?
Math-geometry - bobpursley, Sunday, March 10, 2013 at 12:12am
I gave you the formula for area of a spherical triangle given the excess angle, and the radius of the object. re is the radius of Earth. rm is the radius of the moon.

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