Find Area:
using the formula:
area= 1/2 bh
the base (b)= 1ft
the height (h)=9in
2007-10-05 11:22:01 · 10 answers · asked by babyblue2pie 4 in Science & Mathematics ➔ Mathematics
Convert to same unti first
1foot = 12 inches
1/2(12 *9)
54 inches sqaured
2007-10-05 11:25:00 · answer #1 · answered by David F 5 · 0⤊ 0⤋
A = (1/2)(12)(9) in ²
A = 54 in ²
2007-10-05 19:48:18 · answer #2 · answered by Como 7 · 1⤊ 0⤋
The area of the triangle is 54 squared inches. I recommend you put both the 54" and the 4'6".
So, let's do this:
You need to convert the ft into inches. Now you have B=12"
12" * 9" = 108" OR 9' but you don't need to do 9' =)
108" / 2 = 54" or 4'6"
2007-10-05 11:30:54 · answer #3 · answered by JP 2 · 0⤊ 0⤋
1 ft = 12 inches
area = 1/2 (12) (9)
= 1/2 (108)
area = 54 inches squared
2007-10-05 11:25:17 · answer #4 · answered by superman 4 · 0⤊ 0⤋
area = 1/2 (12 in) (9) = 54 in ²
2007-10-06 23:33:12 · answer #5 · answered by CPUcate 6 · 0⤊ 0⤋
knowing that 12 in. = 1ft.
convert the base into inches 12 inches
now multiply 9x12=108
now divide by two 108/2=54
area of triangle is 54 inches square
2007-10-05 11:26:44 · answer #6 · answered by icemoon 2 · 0⤊ 0⤋
as i remember it the formula is for the area of a triangle and reads as half the base of the triangle times the perpendicular height - so yup, the answer is 54 sq inches. it's based on a triangle basically being half a four sided figure (e.g. a square).
2007-10-05 11:46:42 · answer #7 · answered by Anonymous · 0⤊ 0⤋
1ft = 12 in. so (bh)=12x9=108
1/2bh=108/2=54
2007-10-05 11:30:41 · answer #8 · answered by Michael B 1 · 0⤊ 0⤋
Just plug in your numbers into the equation...
1/2 (1)(9)= 4.5
2007-10-05 11:26:27 · answer #9 · answered by Tali07 2 · 0⤊ 0⤋
its 54in cause 1/2*1ft is 6 in and 6*9 is 54in
2007-10-05 11:27:07 · answer #10 · answered by Anonymous · 0⤊ 0⤋