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October 20, 2014

October 20, 2014

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

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 12:06amarea=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 12:10amConfused? What does that mean?

- Math-geometry -
**bobpursley**, Sunday, March 10, 2013 at 12:12amI 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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