Question 1085853

if given one angle is {{{60}}}°, than the sum of other two angles is ={{{180 −60 =120}}}°
Since the given triangle is isosceles, Theses two angles are of equal measure.
Hence measure each angle = {{{120/2=60}}}°

since all angles equal, all sides are equal too

if one side is {{{144}}} and the other is {{{8x}}}, than 

{{{8x=144}}}

{{{x=144/8}}}

{{{x=18}}}