width=9 length=18
Do-it-in-your-head method: Length plus width is half the perimeter ie 161 cm, of which 68 is width so the length is 93 cm.
Let the width be 2x and the length be x: width*length = area 2x*x = 200 sq ft 2x2 = 200 Divide both sides by 2 and then square root both sides: x = 10 Therefore: length = 10 ft and width = 20 ft
L = 156 cm so L/2 = 156/2 = 78 cm and so width = W = 36 cm more = 78+36 = 114 cm Then perimeter = 2*(L+W) = 2*(156 + 114) cm = 2*270 cm = 540 cm
Yes of course. Each rectangle will have a width half its length.
30
The length of the rectangle is 18cm. The width of the rectangle is 9cm.
perimeter = 2 x (length + width) ⇒ length + width = perimeter ÷ 2 ⇒ length = (perimeter ÷ 2) - width So to find the length of the given rectangle, subtract the width from half the perimeter is how to do it. IF you meant "What is the length..." then: length = perimeter ÷ 2 - width = 40 ÷ 2 - 2 in = 20 - 2 in = 18 in
edit: just check answer, answer was wrong
Length + width = half perimeter = 100". Length is 98", width is 2"
perimeter 24 so length + width half of that ie 12. Length 3 times width must be 9 and width 3.
Length + width = half of perimeter ie 36.7 in. If length is 4.7 in then width is 32 in.
If you add the length and width together, it will always be half of the perimeter. In terms of an equation, it would look like so: Perimeter = (2 x Length) + (2 x Width)
The perimeter of a rectangle is total length of all 4 sides = 2 x length + 2 x width. The semiperimeter is therefore half this amount = length + width.
Half perimeter = 109. Subtract 87 and half the answer 22/2 = 11, this is the width. Add on the 87 giving 98, this is the length.
Do-it-in-your-head method: Length + width is half the perimeter which is 27 inches; 27 minus 6 is 21 and one-third of 21 is 7 which is the width. (Length = 2 x 7 + 6 = 20)
Do-it-in-your-head method: 1. Length + width is half the perimeter ie 116 in 2. 116 minus 68 is 48, half of 48 is 24 which is the width, making the length 92 in
Do-it-in-your-head method:Length + width is half the perimeter, ie 76 inches;76 - 36 = 40;Half of 40 is 20: this is the width;20 + 36 = 56: this is the length.Job done.