2006-10-11 17:47:15 · 7 answers · asked by ourdoorsangler 1 in Science & Mathematics ➔ Mathematics
easy convert to same units : already they are no change
use the formula base * height /2
= 11 * (51/4) / 2 = 11*51 / (4*2) = 561 /8 square inch
2006-10-11 17:49:29 · answer #1 · answered by Mein Hoon Na 7 · 0⤊ 0⤋
The general formula for the area of a triangle is (1/2)*base*height. So, the area for this specific triangle is (1/2)*12.75"*11".
Note: 12 3/4 is equal to 12.75.
2006-10-11 17:51:42 · answer #2 · answered by mekozina 2 · 0⤊ 0⤋
Area of triangle = ½(base * height)
Equals ½ (12 3/4 *11)
Equals ½ ( 51/4 * 11 )
Equals ½ (561/4)
Equals ½ (140.25) = 70.125
Hence area of the given triangle is 70∙125 square inches
2006-10-11 19:01:41 · answer #3 · answered by young_friend 5 · 0⤊ 0⤋
b - base..
h - height.
Area of triangle = ½(b*h)
Area of triangle = ½(12 3/4*11)
Area of triangle = ½(51/4*11)
Area of triangle = ½(561/4)
Area of triangle = 561/8
Area of triangle = 70∙125 square units.
2006-10-11 18:01:24 · answer #4 · answered by Brenmore 5 · 0⤊ 0⤋
the area of a triangle = base x height / 2
A = 12 3/4'' x 11" / 2
A = 70 1/8 sq.inch.
Th
2006-10-11 18:02:28 · answer #5 · answered by Thermo 6 · 0⤊ 0⤋
Formula is the same ~ base * height/2
= 12.75 x 11/2 = 12.75 x 5.50 = 70.125 = 70 1/8 Square Inches
its so simple
2006-10-11 19:32:41 · answer #6 · answered by Alrahcam 4 · 0⤊ 0⤋
math_kp converted his mixed number to an improper fraction improperly. His answer is not correct.
formula is: .5*b*h = .5 *11*12.75 = 70.125 sq.in.
2006-10-11 18:06:41 · answer #7 · answered by danacread 1 · 0⤊ 0⤋