2006-12-04 08:32:38 · 8 answers · asked by Joan C 1 in Science & Mathematics ➔ Mathematics
Yes, it's base times height divided by two.
You can visualize the formula if you start with a rectangle that's 15cm by 4cm and divide it in half from the top left corner to the bottom right.
Now you have two equal triangles, each with a base of 15cm and a height of 4cm.
The rectangle's area was 15cm x 4cm, or 60 square cm, so each triangle must be half of that, or 30 square cm.
2006-12-04 08:44:31 · answer #1 · answered by scotchfaster 2 · 0⤊ 0⤋
A=(1/2)bh=(1/2)12*4=(1/2)60=30cm^2
A=30cm^2
2006-12-04 17:08:08 · answer #2 · answered by yupchagee 7 · 0⤊ 0⤋
1/2( base * height )
2006-12-04 16:35:55 · answer #3 · answered by pmp 2 · 0⤊ 0⤋
area = 1/2 (h)(b)
= 1/2(15)(4)
= 30 cm^2
2006-12-04 16:44:10 · answer #4 · answered by Gardenia 6 · 0⤊ 0⤋
base times height divided by two
2006-12-04 16:35:43 · answer #5 · answered by Anonymous · 0⤊ 0⤋
1/2 base * hight.
2006-12-04 16:34:38 · answer #6 · answered by wildbill05733 6 · 0⤊ 0⤋
(b*h)/2
2006-12-04 16:33:49 · answer #7 · answered by motorcitysmadman 4 · 0⤊ 0⤋
1/2basexheight.
2006-12-04 16:33:55 · answer #8 · answered by :] 3 · 0⤊ 0⤋