The rectangle is 23.6 cm long and 40% wide. Find the perimeter of the rectangle and its area.

Subtract the width of this shape using proportion. To do this, we find 40% of the number 23.6. denote the width of the rectangle x.

23.6 cm – 100%.

x cm – 40%.

x = 23.6 * 40/100.

x = 944/100.

x = 9.44 cm – becomes the width.

Let’s find the perimeter, remembering that this is the sum of all 4 sides of this figure.

P = 9.44 cm + 9.44 cm + 23.6 cm + 26.3 cm = 18.88 cm + 47.23 cm = 66.08 cm.

Let’s round up:

P = 66 cm.

Now let’s subtract the area by multiplying the length by the width:

S = 23.6 cm * 9.44 cm = 222.724 cm2.

Round: 222.7 cm2.