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Section 6.1 Inequalities. Examples of Inequality Signs – In this chapter, you will be making comparisons of the measures of __________ and _________ of a ∆ . Z Complete each conclusion with < , > , or =. X Y
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Section 6.1 Inequalities Examples of Inequality Signs – In this chapter, you will be making comparisons of the measures of __________ and _________ of a ∆. Z Complete each conclusion with < , > , or =. X Y a) Given: XY > XZ, XZ > ZY Conclusion:__________________ b) Given: m JSK + m KST = m JST J Conclusion: m JST _______ m JSK S K m JST ---------- m KST T
Properties of Inequalities If ab and c then a + c ____________. If a d a/c _____ b/c. If If bc and a/c ______ b/c. If a = b + c and c 0, then a ____ b.
Theorem 6-1 The Exterior Angle Inequality Theorem The measure of the of an exterior angle of a is ____________ than the measure of either _____________ angle. Ex) Find x. H x G E Look at CE on page 205.