## Freehand Geometry: ( December 21 – December 28, 2013)

Annoying Circle ABCD is a rectangle. P is inside a rectangle such that AP=3, BP=4, CP=5. What is the area of the circle inscribed in triangle APD if angle APD=9o degrees ? Submit Answer...

Annoying Circle ABCD is a rectangle. P is inside a rectangle such that AP=3, BP=4, CP=5. What is the area of the circle inscribed in triangle APD if angle APD=9o degrees ? Submit Answer...

Graph of Cubic For what value(s) of x is the graph of the cubic is above x-axis? Submit Answer You can also send your answer to techiemathteacher@gmail.com . Please DON’T FORGET TO INCLUDE YOUR NAME AND...

Unique Triangle ABC is a triangle, is the height of the triangle, the measure of angle C is twice the measure of angle A and the length of the base is twice the height....

“Focus”, a 2-syllable word uttered by Jan Paolo Bersalona Go from De La Salle University-Dasmariñas, topnocher of the recent Electronics Engineering Board exam which marked an indicative significance to his recent intellectual triumph. “Wag...

In the previous topic we discussed about the method of getting the sum of finite sine series. Now we will extend our learning to cosines. In this topic I will give a three simple...

In trigonometry, it is easy to find the sum of finite series of sine of angles using our heroic calculator. What about if we are ask to find an expression to represent such series?...

Weird subsets How many subsets in {m,a,t,h,b,l,o,g,s} have at least one vowel? Comment your answer below. Note: I am the only one who can see your comments. You are only allowed to...

Perfect square How many possible value of x in the set of {1,2,3,…,1000} such that the expression is a perfect square? Comment your answer below. Note: I am the only one who...