Trigonometry | MCQs

Explanation

1 radian ≈ 57.3 degrees, based on the formula: 

1 radian = 180/𝜋 degrees.

It is a standard angular measurement in mathematics and physics.

Explanation

To convert radians to degrees, you multiply the number of radians by 180/π. 100 radians multiplied by 180/π is approximately 5729.58 degrees, which rounds to 5730 degrees. 

Explanation

The vertical component of the force is:

Vertical component = Force × sin(angle)

= 15 N × sin(60°)

= 15 N × 0.866

= 13 N

So, the vertical component of the 15 N force at an angle of 60° is approximately 13 N.

Explanation

• The study of angles and of the angular relationships of planar and three-dimensional figures is known as trigonometry.

• Hipparchus was a Greek astronomer who lived between 190-120 B.C.

• Hipparchus is considered the father of trigonometry.