Trigonometry Answers

If a triangle is equilateral, then the 3 medians are of equal length. Conversely if 3 medians of a triangle are of equal length, then the triangle is equilateral, prove.

Cos3© is equivalent to

If a triangle is isosceles then the two median towards that equal sides are of equal length. Conversely if 2 medians of a triangle are equal in length, the triangle is isosceles. Prove.

two people, 7220 ft. apart, observe a balloonist flying overhead between them. their measures of the angles of elevation at 3:30pm are 35.6° and 58.2° respectively. what is the height of the balloonist above the ground?

74 degrees is the same as ___ radians. Rounded to the nearest hundredth of a radian?

What is the length of a ramp that has a 25.1 degree incline and rises 11.5 m?

Let ABC be a triangle,let D,E,F be points on BC,CA and AB such the AD,BE and CF are concurrent at the point K. Suppose BD/DC=BF/AF and angle ADB= angle AFC. Prove that angle ABE=angle CAD
Please explain in simple way

The sensor on a music player is circular. It has a diameter of 8 cm with its centre axis 5 cm from the bottom of the player. If a person moves their finger around the outside of the sensor 1 cm every 1 second, what adjustments could be made to the cosine function to model the movement of the finger?

cos^3a.cos 3a+sin^3a.sin3a=cos^3 2a

If tan^2a=1+2tan^2b,then prove that cos 2b=1+2cos2a