Challenge Section

Vocab Review

A [u]secant[/u] is a segment that passes through a circle at two points. A chord is part of a secant.

In the applet above, line EF and line BF are:

both tangents both secants a secant and a tangent a tangent and a secant

In the applet above, line DE and line BE are:

both tangents a tangent and a secant a secant and a tangent both secants

In the circumscribed angles we saw before, the equation for solving for the angle was outside angle = 1/2(far arc - near arc). What is the difference between the relationship in the far and near arcs in tangent-tangent problems and secant-secant problems or secant-tangent problems?

What do you notice about the figures in the applets? What do you wonder?

After checking your answers and sharing with a classmate but before going on to the next worksheet, please complete this Khan Academy module.

[url=https://www.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-tangents/e/central--inscribed--and-circumscribed-angles]Secant-Secant, Secant-Tangent, and Tangent-Tangent Module[/url]

Challenge Section

Vocab Review

What do you notice about the figures in the applets? What do you wonder?

After checking your answers and sharing with a classmate but before going on to the next worksheet, please complete this Khan Academy module.

Information: Challenge Section