9.1 square roots day 2
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Transcript of 9.1 square roots day 2
Square Roots
9.1
Day 2
Essential Questions
What is the difference between an irrational number and a rational number?
How are real numbers and the Pythagorean Theorem used in everyday life?
What types of real-life situations could the Pythagorean Theorem or square roots apply to? Why?
Perfect Square
What is a perfect square?
How do I know if a number is a perfect square?
GUIDED PRACTICE for Examples 1 and 2
Find or approximate the square root to the nearest integer.
1.
23 2. 41= 4.7958
= 6.40312
GUIDED PRACTICE for Examples 1 and 2
Find or approximate the square root to the nearest integer.
1.
23 2. 41
ANSWER
6
ANSWER
5
= 4.7958= 6.40312
Daily Homework Quiz For use after Lesson 9.1
Use a calculator to approximate the square root. Round to the nearest tenth.
1. 38√ 2. 95.8√= 6.1644 = 9.7877
Daily Homework Quiz For use after Lesson 9.1
Use a calculator to approximate the square root. Round to the nearest tenth.
ANSWER 6.2
1. 38√ 2. 95.8√
ANSWER 9.8
= 6.1644 = 9.7877
Daily Homework Quiz For use after Lesson 9.1
Find the square root.
4.
–25
81
3.
16
49
Daily Homework Quiz For use after Lesson 9.1
Find the square root.
4.
–25
81
3.
16
49ANSWER
4
7
ANSWER5
9–
Evaluate - Simplifying
25
64
36
225
144
100
=
=
=
Evaluate - Simplifying
5
825
64
36
225
144
100
=
=
=
6
15
12
10=
11
5
2
5=
21
10=
Homework
Page 472 #1-20, 42-45, 54-57