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For The Mathematically Inclined

Anil Saigal
08/08/2012

PROBLEM # 1
Find the y intercept of the graph of the equation 2x - 4y = 9.

PROBLEM # 2
In a triangle ABC,median BD is such that angles A and DBC are equal. If angle ADB is 45degrees, What is the measure of angle A? Try to use elementary geometry (Euclid's Elements.)

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Please send your solutions to mr.asaigal@gmail.com.

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If you need clarification on any problem, please contact anil@lokvani.com.

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Problems from 08/02/12

PROBLEM #1
Find the x intercept of the graph of the equation 2x - 4y = 9.

SOLUTION 1

4.5

PROBLEM #2
If, in the triangle ABC, angle BAO = angle OAC = 20°, angle ACO = 10°,and angle OCB = 30°, then what is angle OBC ?


SOLUTION 2
80°.

Congratulations to Suhas Joglekar, who was the winner of the last set of puzzles..



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