4.5 Warm Up: Intersecting Line Lengths

Front

What is the formula used to find the length of a tangent and a secant intersecting outside a circle?

Back

Tangent² = Outside x Whole

Front

What is the formula used to find the lengths of two intersecting secants?

Back

Outside x Whole = Outside x Whole

Front

What is the formula used to find the lengths of two intersecting chords?

Back

Part x Part = Part x Part

Front

If a tangent from a point outside a circle measures 5 units and the whole secant measures 20 units, what is the length of the secant?

Back

25 units (5² = 5 x 20)