1. Home
  2. >Trigonometry
  3. >Trigonometric Ratios and Angle Measure
Help

Radian measure and arc length

All You Need in One Place

Everything you need for Year 6 maths and science through to Year 13 and beyond.

Learn with Confidence

We’ve mastered the national curriculum to help you secure merit and excellence marks.

Unlimited Help

The best tips, tricks, walkthroughs, and practice questions available.

0/5
?
Examples
Lessons
  1. Use the information in each diagram to determine the value of the variable
    Give your answers to the nearest hundredth of a unit.


    1. Using arc length and radius to calculate angle in radian

    2. using angle in radian to calculate arc length of a circle

    3. Using angle in radian and arc length to calculate radius

    4. Using angle in degree and radius to calculate arc length
  2. A 20 cm long pendulum swings through an arc length of 60 cm. Through
    what angle, in both degrees and radians, does the pendulum swing?
    Topic Notes
    ?
    arc  length=r⋅θ  radian arc\;length= r \cdot \theta\;radian
    Basic Concepts
    ?
    Related Concepts
    ?