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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

5. Tangents

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Exercise 22 Page 755

If two segments from the same exterior point are tangent to a circle, then they are congruent and have the same measure.

1

Practice makes perfect

Consider the given diagram.

If two segments from the same exterior point are tangent to a circle, then they are congruent and have the same measure. We can use this fact to write an equation in terms of x. 6x-4=2x Let's solve this equation!

6x-4=2x

LHS-2x=RHS-2x

4x-4=0

LHS+4=RHS+4

4x=4

.LHS /4.=.RHS /4.

x=1

Subchapter links

Exercises p.753-757