TANGENT RATIO CHAPTER 7 Section 4 Jim Smith JCHS

A B C HYPOTENUSE LEG

A B C

4 3 5 X Y Z

TANGENT = OPPOSITE LEG ADJACENT LEG

A BC TAN OF A = 7 24

A BC TAN OF C =

USING THE TANGENT RATIO X 6 55 OPP ADJ 3) X = 8.56 or 8.6 1) TAN OF 55 = X 6 1 2) = X 6

X x OPP ADJ 1) TAN OF 70 = 3) 4) X = X 18 X = 2) 18 =

3 X 43 1)2) 18 X 27 3) 7X 39 4) 13 X 55

1) TAN 43 = 3 / X.9325 = 3 / X.9325 X = 3 X = 3.2 2) TAN 18 = X / = X / 27 X = 8.8 3) TAN 39 = X / = X / 7 X = 5.7 4) TAN 55 = 13 / X = 13 / X X = 13 X = 9.1

REMEMBER SET CALCULATORS TO DEGREES SET CALCULATORS TO DEGREES SHOW ALL STEPS SHOW ALL STEPS TAN RATIOS TO 4 DECIMAL PLACES TAN RATIOS TO 4 DECIMAL PLACES ROUND ANSWERS TO 1 DECIMAL PLACE ROUND ANSWERS TO 1 DECIMAL PLACE