Finding Angles

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msd_2008: Senior | Next Rank: 100 Posts; Posts: 66; Joined: Sun Jun 29, 2008 8:37 pm; Location: India; Thanked: 1 times

by msd_2008 » Wed Dec 10, 2008 9:50 pm

Hi,

Can someone explain how to find values of respective angles in typical pythogoras triplets For eg:- 3-4-5, 12-5-13 etc.?

Regards
MSD

When the going gets tough, the tough gets going.

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Source: Beat The GMAT — Problem Solving | Wed Dec 10, 2008 9:50 pm

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Brent@GMATPrepNow: GMAT Instructor; Posts: 16207; Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members; Location: Vancouver, BC; Thanked: 5254 times; GMAT Score:770

by Brent@GMATPrepNow » Sat Dec 13, 2008 5:41 pm

I'm quite certain that you would not need to determine the angles in pythagorean triplets. This would require sine, cosine and tangent ratios . . . and either a calculator or a table of trig ratios. This question is outside the scope of the GMAT.

However, for the GMAT, you would need to know that the angle opposite the longest side is the largest angle, and the angle opposite the shortest side is the smallest angle

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