a rectangle fixed at 30 cm what will make the permiter greater than 78cm
what does it mean to fix a rectangle at 30cm?
the lenght of a rectangle is 30cm what will make the permiter greater than 78cm
To find a way to make the perimeter of a rectangle greater than 78 cm, we can use the formula for the perimeter of a rectangle, which is P = 2(L + W), where P is the perimeter, L is the length, and W is the width.
Since the length of the rectangle is fixed at 30 cm, we only need to find a suitable width that would increase the perimeter.
Let's start by assuming the width of the rectangle is w cm.
Based on the formula for the perimeter, we can write an equation:
P = 2(L + W)
78 = 2(30 + w)
Simplifying the equation, we get:
78 = 60 + 2w
2w = 78 - 60
2w = 18
w = 18/2
w = 9
Therefore, to make the perimeter of the rectangle greater than 78 cm, you would need to choose a width greater than 9 cm.