# Cotangens - problems

- Pilot

How high is the airplane's pilot to see 0.001 of Earth's surface? - Regular 5-gon

Calculate area of the regular pentagon with side 7 cm. - Building

How high is the building that throws horizontal shadow 95.4 m long at angle 50°? - Q-Exam

If tg α = 0.9, Calculating sin α, cos α, cotg α . - Aircraft

The plane flies at altitude 6500 m. At the time of first measurement was to see the elevation angle of 21° and second measurement of the elevation angle of 46°. Calculate the distance the plane flew between the two measurements. - Angle

A straight line p given by the equation ?. Calculate the size of angle in degrees between line p and y-axis. - Tree

Between points A and B is 50m. From A we see a tree at an angle 18°. From point B we see the tree in three times bigger angle. How tall is a tree? - How far

From the top of a lighthouse 145 ft above sea level, the angle of depression of a boat 29°. How far is the boat from the lighthouse?

We apologize, but in this category are not a lot of examples.

Do you have an interesting mathematical problem that you can't solve it? Enter it, and we can try to solve it.

Do you have an interesting mathematical problem that you can't solve it? Enter it, and we can try to solve it.