Need to solve. The length of a rectangle is fixed at 30cm. What width s will make the perimeter greater than 98cm?
The width must be greater than _____ cm.
Perimeter=2*L + 2*S
solve for s
To solve this problem, we need to use the formula for the perimeter of a rectangle, which is given by the equation:
Perimeter = 2 * (Length + Width)
In this case, the length of the rectangle is fixed at 30cm, so the equation becomes:
Perimeter = 2 * (30 + Width)
We are given that the perimeter needs to be greater than 98cm. Therefore, we can set up the following inequality:
2 * (30 + Width) > 98
To solve for the width, we will isolate the variable by dividing both sides of the inequality by 2:
30 + Width > 98 / 2
30 + Width > 49
Next, we will subtract 30 from both sides of the inequality:
Width > 49 - 30
Width > 19
Therefore, the width must be greater than 19cm.