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. (a) E 84 10° 110° B to C NOT TO SCALE INT ANGLE = (n-2) 180 =(5-3)180 -3(180) = 540" x+84+*+110 + 110 2x + 304 = 540 2x = 540-304 In the pentagon ABCDE, angle EAB = angle ABC-110° and angle CDE=84°. Angle BCD-angle DEA =x°. (i) Calculate the value of x. 2x=236 2 x= 118° Answer(a)(i) x= =540 118

. (a) E 84 10° 110° B to C NOT TO SCALE INT ANGLE = (n-2) 180 =(5-3)180 -3(180) = 540" x+84+*+110 + 110 2x + 304 = 540 2x = 540-304 In the pentagon ABCDE, angle EAB = angle ABC-110° and angle CDE=84°. Angle BCD-angle DEA =x°. (i) Calculate the value of x. 2x=236 2 x= 118° Answer(a)(i) x= =540 118

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.2: The Law Of Cosines
Problem 3E
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. (a) E 84 10° 110° B to C NOT TO SCALE INT ANGLE = (n-2) 180 =(5-3)180 -3(180) = 540" x+84+*+110 + 110 2x + 304 = 540 2x = 540-304 In the pentagon ABCDE, angle EAB = angle ABC-110° and angle CDE=84°. Angle BCD-angle DEA =x°. (i) Calculate the value of x. 2x=236 2 x= 118° Answer(a)(i) x= =540 118
Transcribed Image Text:. (a) E 84 10° 110° B to C NOT TO SCALE INT ANGLE = (n-2) 180 =(5-3)180 -3(180) = 540" x+84+*+110 + 110 2x + 304 = 540 2x = 540-304 In the pentagon ABCDE, angle EAB = angle ABC-110° and angle CDE=84°. Angle BCD-angle DEA =x°. (i) Calculate the value of x. 2x=236 2 x= 118° Answer(a)(i) x= =540 118
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