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What's on the worksheet
- Find the angle from arcs for tangents, chords and secants in several cases.
- Find the angle Hannah's lines of sight make at the round stone tower.
- Find both arcs when two secants meet at 48 degrees outside the circle.
- Find angles and arcs from four arcs around a circle cut by two secants.
- Decide whether each angle's measure matches the arcs it intercepts.
- Find angles made by lines and tangents on a circle with five equal arcs.
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The free lesson teaches it with worked examples and practice problems.
Angles made by chords, secants and tangents: the lesson ›More Chapter 10 worksheets: Circles
- 10.1Chords, secants and tangents
- 10.2Arcs and central angles
- 10.3Arc length
- 10.4Sectors, segments and their areas
- 10.5The inscribed angle theorem
- 10.6Inscribed polygons and cyclic quadrilaterals
- 10.7Proving the inscribed angle theorem
- 10.8Chord theorems
- 10.9Tangent properties
- 10.10Proving a tangent is perpendicular to the radius
- 10.11Angles made by chords, secants and tangents
- 10.12Segment lengths in circles
- 10.13Proving the power of a point relationships
- 10.14Regular polygons and their circles
- 10.15Equation of a circle
- 10.16Finding the center and radius