11. If the perimeter of the given triangle is more than 22 cm and less than or equal to 30cm. express it in inequality and solve it.

Answer:
5 < x ≤ 7
Step-by-step explanation:
perimeter = 2x + x + x + 2 = 4x + 2
perimeter is more than 22 so 22 is less than perimeter , then
22 < 4x + 2 ≤ 30 ( subtract 2 from each interval )
20 < 4x ≤ 28 ( divide each interval by 4 )
5 < x ≤ 7