Area 98 square centimeters; with half the length.
2007-04-16 21:12:49 · 8 answers · asked by Vokalskilz 1 in Science & Mathematics ➔ Mathematics
W(2W)=98
2W^2=98
W^2=49
W=7
L=2W
L=14
7x14=98
2007-04-16 21:20:20 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I suppose you mean width is half the length.
Let width = x. Length = 2x
Length * Width = Area
2x*x = 98
2x^2 = 98
x^2 = 49
x = 7 cm
Width = 7cm
Length = 14cm
The rectangle is 14cm by 7 cm
2007-04-17 10:30:56 · answer #2 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋
Let length = L cm
breadth = L / 2 cm
L x L/2 = 98
L² = 196
L = 14
Dimensions are 14cm by 7cm
2007-04-17 05:22:26 · answer #3 · answered by Como 7 · 0⤊ 0⤋
if you say the width is x, length will be 2x
2x multiplied by x then equals 98
2x^2=98
x^2=49 cm
x=7 cm
width: 7
length: 14
2007-04-17 04:17:52 · answer #4 · answered by lastdemocratalive 2 · 0⤊ 0⤋
I assume the last part is stating width is half the length.
Therefore:
W = L/2
Area = W*L
Area = (L/2) * L
Area = (L^2)/2
98 = L^2/2
L = 14 cm
W = 7 cm
2007-04-17 04:19:18 · answer #5 · answered by Richard T 1 · 0⤊ 0⤋
the question is not clear
Half the lenght of what?
half the base?
or length is 1/2?
2007-04-17 04:18:56 · answer #6 · answered by detektibgapo 5 · 0⤊ 1⤋
eazy.
let X be one side.
2X be another.
Hence area = length * width.
Hence 98 cm2 = 2X^2
49cm2 = X^2
take square root of both sides..
7cm = X
Therefore, once side is 7cm, other side is 14cm.
2007-04-17 04:44:48 · answer #7 · answered by carrier_anomaly_detected 2 · 0⤊ 0⤋
breadth=7
length=14
2007-04-17 04:54:18 · answer #8 · answered by nanda 1 · 0⤊ 0⤋