# Set of problems from Thailand 1st round math POSN (help mehhh)

It's almost a year passed, but I still can't do these problems. Most of them I already did it, but I will still post it anyway. There're 4 main topics and Inequalities for the glory of satan of course.

I'll be translating these problems in English for you. Might take about 10 minutes each topics.

Thanks!

P.S: Every single note I wrote it as 2014, which is supposed to be 2013. I can't change it lol. =="

Please post a full solution to these notes instead, not on this note. Someone even did the problem before I finished translating. It was expected to be 3-hour test! =..="

Geometry (I did 1 and 3, the rest are stuck midway)

Algebra (I did 1 (bashing) and 2.1)

Inequalities (I did only 1)

Number Theory (can't remember anything I did)

Combinatorics (I did all of them except 3, and 5 seems to be wrong)

Note by Samuraiwarm Tsunayoshi
4 years ago

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1. numbered2. list
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paragraph 1paragraph 2

paragraph 1

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This is a quote
    # I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears as
Remember to wrap math in $$...$$ or $...$ to ensure proper formatting.
2 \times 3 $$2 \times 3$$
2^{34} $$2^{34}$$
a_{i-1} $$a_{i-1}$$
\frac{2}{3} $$\frac{2}{3}$$
\sqrt{2} $$\sqrt{2}$$
\sum_{i=1}^3 $$\sum_{i=1}^3$$
\sin \theta $$\sin \theta$$
\boxed{123} $$\boxed{123}$$

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For the first one, I have transformed the
Quadrilateral into a rectangle of the same area. But am having difficulty in transforming the rectangle into a square.

- 4 years ago