18cm is the area and perimeter. the width is 3cm.
I assume you are referring to a rectangle. Just add the lengths of all four sides.
First find the dimensions of the rectangle. Let the length be x+4 and the width be x: 2(x+4+x) = 20 2x+8+2x = 20 4x = 20-8 4x = 12 => x = 3 Therefore: length = 7cm and the width = 3cm Area = length*width => 21cm2
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3cm, 3cm and 3cm respectively
The width is 3cm.
What about it? What is the question?
length + width = 20/2 = 10 length = 7cm, width = 3cm
18cm is the area and perimeter. the width is 3cm.
the equation for area is area = length * width. area = 3cm*4cm. Area = 12cm^2
I assume you are referring to a rectangle. Just add the lengths of all four sides.
if you have a box that is 9cm long and 3cm wide then you would say width + length + width + length because the side opposite from 3cm is also 3cm and the side opposite 9cm is also 9cm. so you would add: 9cm+9cm+3cm+3cm = 24cm if you have a box that is 9cm long and 3cm wide then you would say width + length + width + length because the side opposite from 3cm is also 3cm and the side opposite 9cm is also 9cm. so you would add: 9cm+9cm+3cm+3cm = 24cm
First find the dimensions of the rectangle. Let the length be x+4 and the width be x: 2(x+4+x) = 20 2x+8+2x = 20 4x = 20-8 4x = 12 => x = 3 Therefore: length = 7cm and the width = 3cm Area = length*width => 21cm2
If the dimensions given are the length and the width, the area is determined by multiplying the length X width (5 X 3 = 15 sq cm).
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3cm, 3cm and 3cm respectively
36 cm2 Area of a rectangle is length times width, so you would multipy 12cm by 3 cm to get 36 sq. (squared) cm.