Final answer:
To find the value of x in a shape with a perimeter of 280 cm
Step-by-step explanation:
To find the value of x, we need to use the information given in the question. The perimeter of the shape is 280 cm, and we need to determine x. Since the perimeter is the sum of all the sides, we can set up an equation:
x + x + 186 + 186 = 280
Combining like terms and solving for x:
2x + 372 = 280
2x = -92
x = -46
Therefore, the value of x is -46 cm.