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Unformatted text preview: 1 2 (4)(6) sin 60 o = 12( 3 2 ) = 6 3 Example. Find the area of the shaded segment shown below. 1 Solution. The pieshaped sector, A s , has area equal to 70 360 times the area of the circle. Thus A s = 70 360 r 2 = 7 36 8 2 = 112 9 The area, A , of the shaded segment is A s minus the area of the triangle. Hence, A = A s1 2 (8) 2 sin 70 o = 112 9 32 sin 70 o = 9 . 03 7.4 EXERCISES 12. In Figures 1, 7, nd the area of the triangle. Round answers to two decimal places. In Problems 35, nd the area of the triangle. Round answers to two decimal places. 3. a = 3 , b = 4 , = 40 o 4. a = 3 , c = 2 , = 110 o 5. a = 5, b = 8, c = 9 2...
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This note was uploaded on 12/11/2011 for the course MAC 1140 taught by Professor Kutter during the Fall '11 term at FSU.
 Fall '11
 Kutter
 Algebra

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