Question

What is the value of x.

Answer 1

The RST
`\huge{\triangle}` is same in all side,

it is equilateral triangle.

so each angel =180/3=60°

But,

According to the question,

• 7x+4=60
• 7x=60-4
• 7x=56
• x=56/7
• x=8

Answer 2

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°