Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
You can change this under Settings & Account at any time.
Square Roots and Irrational Numbers
Transcript of Square Roots and Irrational Numbers
As decimals, they either terminate (end) or repeat. TO RECAP: Square roots are the inverses of squares. So what's an IRRATIONAL number? An IRRATIONAL NUMBER has a decimal form that neither terminates (ends) nor repeats. 4 x 4 = 16 sq ft Okay, this one? 1 ft 1 x 1 = 1 sq ft The square of an integer is called a PERFECT SQUARE. 5 2 = 25 What's the side length of this square? Area = 25 sq ft 5 x 5 = 25 sq ft Okay, this one? 3 ft 3 x 3 = 9 sq ft The inverse of squaring a number is finding a square root. 5 ft 5 ft 5 ft 5 ft Area = 9 sq ft 3 ft 3 ft 3 ft 25 = 5 FOR EXAMPLE: 1
2 = 0.5 2
3 = 0.6666... = 0.6 7
8 = 0.875 One example is the number , or pi, which neither ends nor repeats - 5 trillion digits and counting! ALSO: If an integer is not a perfect square, its square root is irrational. 13 Irrational numbers (as decimals) do not end or repeat. The square roots of non-perfect squares are
Irrational Numbers. We can find between which two integers the square root of a non-perfect square lies. So where is ? 13