a)96 in. 2
b)10 in. 2
c)20 in. 2
d)48 in. 2
2006-11-28 02:25:57 · 7 answers · asked by cave_21man 1 in Science & Mathematics ➔ Mathematics
The triangle area formula is
A = 1/2 b h
A = 1/2(8)(12)
A = 8/2(12)
A = 96/2
A = 48
The area of the triangle is 48 inches
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2006-11-28 03:02:07 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
The area of a triangle is 1/2 * the base * the height.
1/2 * 8 * 12 = 48 inches squared.
D.
2006-11-28 10:27:22 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Think of a rectangle shape {A,B,C,D}.
AB is 8 inch, BC is 12 inch, CD is 8 inch, DA is 12 inch.
Now draw a line from A to C. You end up with two triangles.
Side AC of each triangle is the same. Side AB (triangle 1) and side CD (triangle 2) are the same size, so are BC and DA.
In other words: the triangles are exactly the same (although one is rotated when compared to the other).
Because you end up with two equivalent triangles, each triangle has half the area of the rectangle.
A rectangle's area is (b * h), so the triangle's area is (1/2 * b * h). Now the answer is easy to compute.
2006-11-28 10:35:16 · answer #3 · answered by Anonymous · 0⤊ 0⤋
48 or d
2006-11-28 11:18:56 · answer #4 · answered by Joseph C 1 · 0⤊ 0⤋
1/2 the base times the height.
2006-11-28 10:34:26 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Right triangle? I pick D. Base x height then divide by 2.
2006-11-28 10:28:53 · answer #6 · answered by chefgrille 7 · 0⤊ 1⤋
48 sq. units
2006-11-28 10:30:05 · answer #7 · answered by Anonymous · 0⤊ 0⤋