Google Classroom
GeoGebraGeoGebra Classroom
GeoGebra

Tangents on a circle

Author:amyob88
Topic:Circle

Move the points A, B, C and D around the screen. Notice what happens to the angles and lengths as this happens.

Question 1

Consider the statement 'a tangent is a line that crosses a circle', is this... ?

Select all that apply
  • A
  • B
  • C
Check my answer (3)

Question 2

A tangent is a line that touches a circle at one point

Select all that apply
  • A
  • B
Check my answer (3)

Question 3

In the diagram, what is the relationship between the two line segments [BC] and [BD]?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)

Question 4

In the diagram, what is the relationship between the angles ACB and ADC?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)

Question 5

Under what condition are [BC] and [BD] equal?

Question 6

Under what condition is angle BCD 90 degrees?

Question 7

In the diagram, what shape(s) can the points A, C, B and D make?

Select all that apply
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
Check my answer (3)

Question 8

What can be said about the points A, B and C?

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

New Resources

Discover Resources

Discover Topics