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Guest Apr 3, 2018
 #1
avatar
+2

Height = Sin(20) x 9 = 3.078

Area = Base x Height x 1/2

Area = 14 x 3.078 x 1/2

Area =21.5 cm^2

Guest Apr 3, 2018
 #2
avatar+4 
+1

Answer of the above question is 21.5 cm^2. You just implement the forumla and get the answer.

Nimrasubhan  Apr 3, 2018
 #3
avatar+93866 
+2

You are better to use the area formula.

 

area = 1/2 *absinC

 

= 1/2 *   (9*14*sin 20)

 

etc

Melody  Apr 3, 2018

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