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3­8 square roots web.notebook 3 ­ 8 Square Roots January 03, 2011 The number a is a square root of b if a2 = b So...what does this mean? Objective: To find and estimate square roots Jan 3­12:21 PM Fill in the missing values of the following table: 2 1 = 22 = 32 = 42 = 52 = 62 = 72 = 2 8 = 92 = 102 = 112 = 122 = 132 = 142 = 152 = Jan 3­12:22 PM Find the square root of the following numbers: a) √49 b) √81 c) √144 d) √36 Jan 3­12:24 PM THINK (without speaking): Jan 3­12:28 PM Estimate the square root of the following numbers a) √23 Can you find the square root of a negative number? Be ready to explain your reasoning. b) √37 c) √132 Jan 3­12:30 PM Jan 3­12:32 PM 1 3­8 square roots web.notebook January 03, 2011 Find the exact square root of the following numbers to three decimal places: a) √23 Homework: b) √37 page: 177 c) √132 #'s: 1­12, 17­20 Jan 3­12:32 PM Jan 3­12:37 PM 2