Question

Finding the angle measure

Answer 1

We could look at the midsegment TR as not part of the triangle and solve for the angles that way.

All the angles in a triangle= 180 degrees

We know that it is an isosceles triangle from the congruence marks, so two angles will have the same measure. 

57+57+x= 180

114+x=180

x=66 The missing angle, or <SRU= 66

Since TR splits the triangle in half, and we know that the angles are congruent by the congruence marks, divide 66 by 2.

66/2= 33

m<TRU= 33 degrees

I hope this helps!
~kaikers