A roof is shaped like a rectangle, with a legth that is 2x the width and an area of 1.152 sq feet. What is the width, the length and the parameter of the roof?
2007-02-05 05:22:37 · 4 answers · asked by poisonchick12345 1 in Science & Mathematics ➔ Mathematics
Let breadth = x
length = 2x
2x² = 1152
x² = 576
x = 24 ft
Breadth = 24 ft and length = 48 ft
Perimeter = 2 x 24 + 2 x 48 = 48 + 96 = 144 ft
2007-02-05 05:58:44 · answer #1 · answered by Como 7 · 0⤊ 0⤋
x = width
2x = length
A = width *length = x*2x = 2X^2
2x^2 = 1152
x ^2= 576
x = 24 = width in feet
2x = 48 length in feet
Perimeter = 2(24+48) = 144 feet
2007-02-05 13:33:15 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
width= 24 feet
length=48 feet
perimeter: 144 feet
2007-02-05 13:34:12 · answer #3 · answered by Yellow Tail 3 · 0⤊ 0⤋
x * 2x = 1.152
2x² = 1.152
x² = 0.576
x = .759 ft. (width)
2x = .918 ft (length)
x + 2x + x + 2x = 4.554 ft (perimeter)
that's a small roof.
2007-02-05 13:30:21 · answer #4 · answered by bequalming 5 · 0⤊ 0⤋