It depends on whether you want the width as a fraction of the length or perimeter or something else - like the diagonal.
The perimeter of a rectangle is 2length +2 width. the width is x the length is x+4. Plug into the equation 2(x)+2 (x+4)=20 2x+2x+8=20 4x=12 x=3 The width is 3 the length is 7 (3+4) Area is length times width. 3(7)= 21. the area is 21 centimeters
Length + width = half of perimeter, ie 18 cm. 18 - 4 = 14, 14/2 = 7 so sides are 7 and 11 cm and area = 77sq cm
well mine is 4cm wide and 45 cm long
4cm
22 cm
40cm2
12cm
You multiply 6 and 4.
The length should be 6cm and the width is 4cm.
the equation for area is area = length * width. area = 3cm*4cm. Area = 12cm^2
6 cm x 4 cm = 24cm2 (length x width = area)
4cm by 13cm
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
The perimeter of a rectangle is 2length +2 width. the width is x the length is x+4. Plug into the equation 2(x)+2 (x+4)=20 2x+2x+8=20 4x=12 x=3 The width is 3 the length is 7 (3+4) Area is length times width. 3(7)= 21. the area is 21 centimeters
Let the length be x+4 and the width be x: 2(length+width) = perimeter 2(x+4+x) = 20 2x+8+2x = 20 4x = 20-8 4x = 12 x = 3 Therefore: length = 7 cm and the width = 3 cm Area = length*width = 7*3 = 21 square cm
Volume is length times width times height. ^_^ Say, a 3-D rectangle. height: 8cm length: 5cm width: 4cm 5x4x8 5x4=20 20x8=160 And remember, volume is always cubed. Volume of the rectangle = 160cm3
The formula for a cube is Length x Width x Height. Since a cube is equal on all sides the length, width, and height are all going to be the same. Take the cube root of 64cm3 is 4cm. Length (4cm) x Width (4cm) x Height (4cm) = 64cm3