Question

What is the value of x?

Answer 1

Answer:  x = 8

Step-by-step explanation:

Since, RTS is the equilateral triangle.

Thus, RT= TS = SR

And, $\angle TRS = \angle RTS = \angle RST = 60^{\circ}$ ( By the property of the equilateral triangle.)

Here, Given  ∠ RST =  (7 x + 4)°

And, ∠ RTS = (8y +12)°

Therefore, (7 x + 4)° = 60°

⇒ 7 x = 56

⇒ x = 8

Answer 2

Answer:

x=8

Step-by-step explanation:

Since, RTS is the equilateral triangle.

Thus, RT= TS = SR

And,  ( By the property of the equilateral triangle.)

Here, Given  ∠ RST =  (7 x + 4)°

And, ∠ RTS = (8y +12)°

Therefore, (7 x + 4)° = 60°

7 x = 56

x = 8