G-C.4. (+) Construct a tangent line from a point outside a given circle to the circle.

The problem says that I need to construct a tangent line from a point outside a circle to the circle. What am I trying to solve? I am trying to figure out how to place this line so it is tangent. The important/essential information is that I use the definition of a tangent line. Hint: Review the Semicircle Theorem Step 1

Step 2

Step 3

Measure with protractor and learn that the angle is ~91.1 degrees. How can we improve the accuracy in this environment?

## THIS PROBLEM IS FROM THE CCSS

G-C.4. (+) Construct a tangent line from a point outside a given circle to the circle.The problem says that I need to construct a tangent line from a point outside a circle to the circle.

What am I trying to solve? I am trying to figure out how to place this line so it is tangent.

The important/essential information is that I use the definition of a tangent line.

Hint: Review the Semicircle TheoremStep 1

Step 2

Step 3

Measure with protractor and learn that the angle is ~91.1 degrees. How can we improve the accuracy in this environment?

June 2014 - Updated