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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

1. Circles and Circumference

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Exercise 18 Page 720

Use the Segment Addition Postulate.

2.6

Practice makes perfect

Consider the given diagram.

To find CK we will use the Segment Addition Postulate. We are given that BC= 5.4 units. We also know that ⊙ K has a radius of 8 units, so we know that BK= 8. We can use this information to find the length of CK.

BC + CK = BK

BC= 5.4, BK= 8

5.4 + CK = 8

LHS-5.4=RHS-5.4

CK =2.6

We have found that CK=2.6 units.

Subchapter links

Exercises p.719-723