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The drawing shows an isosceles triangle. Work out the size of angle a.

 

 Mar 2, 2021
 #1
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50 degress

 Mar 2, 2021
 #2
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There are 180in the sum of internal triangle angles

   isosceles has two angle =

      65 + 65 + a = 180     solve for  ao

 Mar 2, 2021

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