+0  
 
0
45
1
avatar+87 

help geometry i think D is 60 and C 21 but I am not positive 

rrahh  Aug 29, 2018
edited by rrahh  Aug 29, 2018
 #1
avatar+88775 
+1

First  one

 

x  =  180 - 64  - 58  = 58°

Acute ..Isosceles  

 

 

 

Second one :

 

We have an equilateral triangle  ...each  interior angle  = 60°   = x

Acute...Equiangular....Equilateral....Isosceles  [ some people will debate the "Isosceles" classification...."Isosceles"  is often defined as a triangle having EXACTLY two sides of equal length ]

 

Last one

 

x =  [180 - 48 ] / 2 = 132 / 2 =   66°

Acute...Isosceles

 

 

cool cool cool

CPhill  Aug 29, 2018
edited by CPhill  Aug 29, 2018
edited by CPhill  Aug 29, 2018
edited by CPhill  Aug 29, 2018

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