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Big Ideas Math Geometry, 2014
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Big Ideas Math Geometry, 2014 View details
2. Measuring and Constructing Segments
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Exercise 39 Page 18

Add the terms inside the radical. Is the sum a perfect square?

5

Practice makes perfect
Let's begin by adding the terms inside the radical. sqrt(20+5) ⇔ sqrt(25) It simplified to be a perfect square! When we are given a number in a radical, we are typically being asked for the principal root. When the index is even, the root is positive. Since the index of sqrt(25) is even, let's find its principal root.
sqrt(25)
SplitIntoFactors

Split into factors

sqrt(5*5)
ProdToPowTwoFac

a* a=a^2

sqrt(5^2)
SqrtPowToNumber

sqrt(a^2)=a

5
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arrow_right Communicate Your Answer p.11
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arrow_right Monitoring Progress p.12-15
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Monitoring Progress 3 (Page 12)
Monitoring Progress 4 (Page 12)
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arrow_right Exercises p.16-18
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Exercises 3 (Page 16)
Exercises 4 (Page 16)
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Exercises 10 (Page 16)
Exercises 11 (Page 16)
Exercises 12 (Page 16)
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Exercises 25 (Page 17)
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Exercises 29 (Page 18)
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Exercises 31 (Page 18)
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Exercises 41 (Page 18)
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Exercises 44 (Page 18)
Exercises 45 (Page 18)