## Painless Trigonometry (January 8 – January 15, 2014)

The pole A flagpole stands on a top of a building. The angle of elevation of the foot of the pole 30 m from the foot the building is 60° and 80 m farther,...

8 Jan, 2014

The pole A flagpole stands on a top of a building. The angle of elevation of the foot of the pole 30 m from the foot the building is 60° and 80 m farther,...

31 Dec, 2013

Circling the triangle Triangle ABC is inside circle O. Angle BAC = 60°. , . What is the area of circle O in terms of π? Submit Answer You can also send...

21 Dec, 2013

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....

14 Dec, 2013

Sum of tangents Given: Find the value of Comment your answer below. Note: I am the only one who can see your comments. You are only allowed to comment your answer once. Comments...

7 Dec, 2013

Square of a Sine What is the sum of sin21+sin22 +. . .+sin289 ? Comment your answer below. Note: I am the only one who can see your comments. You are only...

30 Nov, 2013

Sine of A Given . What is sin2A if A is on the 4th quadrant? Send your answer to techiemathteacher@gmail.com or to our facebook page. Please do not forget...