Evaluating Tangent

Given (0,1) What is tangent?

• 0

• 1

• undefined

The tangent-chord theorem states that:

• The angle formed by a tangent and a chord is half of the measure of the intercepted arc

• Two tangents to a circle from the same point are equal in length

• The length of a tangent to a circle from a point outside the circle is equal to the radius of the circle

• None of the above

Line t is tangent to the circle. Find the indicated measure.

Line XD and ZD are tangents to circle A at points X and Z respectively. Major arc XCZ and minor arc XZ are the intercepted arcs of the angle created by the two tangents outside the circle. What relationship exists among the given figures?

• Undefined
• -1
• 0
• 1

• 0.8387

• -0.5446

• -1.5397

• -0.8387

• 
• 
• 
• 

Use your calculator to evaluate: Tan(4)=?

• 158

• 0.864

• 0.070

• 14.3

• √3/3
• √3
• 1
• undefined