Step-by-step explanation:
If TR=SR=ST
SO,
all angles are equal
one angle =180/3=60°
but,here,
In angle S =60°
7x+4=60
7x=60-4
7x=56
x=56/7
x=8°
Answer:
The RST[tex]\huge{\triangle}[/tex] is same in all side,
it is equilateral triangle.
so each angel =180/3=60°
But,
According to the question,
