a) 90 in. 2
b) 54 in. 2
c) 10.5 in. 2
d) 162 in. 2
2006-11-30 02:29:12 · 16 answers · asked by cave_21man 1 in Science & Mathematics ➔ Mathematics
Area Formula
A = 1/2 b h
A = 1/2(9)(12)
A = 1/2(108)
A = 108/2
A = 54
The answer is A = 54
The area of the triangle is 54 inches
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2006-11-30 02:49:16 · answer #1 · answered by SAMUEL D 7 · 1⤊ 0⤋
A=1/2bh
so
A=1/2(9)(12)
A=54
2006-11-30 02:37:01 · answer #2 · answered by Soccerfun10 2 · 0⤊ 0⤋
Area of triangle where base and height are known given by formula A= 1/2*b*h = 1/2*9*12 = 54 sq in
2006-11-30 03:00:27 · answer #3 · answered by Paleologus 3 · 0⤊ 0⤋
The formulation are difficulty-free yet you're able to comprehend why it works. think of the triangle is paired with a matching triangle to type a rectangle. the portion of a rectangle is heigth cases width. consequently 9 cases 12 = 108. yet you have in basic terms a million/2 of the rectangle so divide that by making use of two and additionally you have fifty 4 sq. inches.
2016-12-13 17:23:12 · answer #4 · answered by ? 4 · 0⤊ 0⤋
I am going to give you the most useful answer:
You have asked, over and over again, these kind of simple triangle problems, only different in the amount of inches on each side.
You don't seem to learn anything of the answers given. Stop wasting your (and our) time. Instead, find out how easy it is to take one of the previous answers, change {5 and 8} into {9 and 12) and do the math yourself.
People say there aren't stupid questions. Well, yours seem to be doing a pretty well job of disproving that fact.
2006-11-30 03:46:51 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Half x 9 x 12 = 54
Therefore the answer is b
2006-11-30 02:37:00 · answer #6 · answered by AndyPandy 3 · 0⤊ 0⤋
Area = (½)(b)(h)
A = (½)(9)(12)
A = 54 inches²
ANSWER: b) 54 in.²
2006-11-30 02:59:43 · answer #7 · answered by Anonymous · 0⤊ 0⤋
(1/2)*12*9= 54
so b
2006-11-30 02:34:25 · answer #8 · answered by leksa27 2 · 1⤊ 0⤋
GIVEN:
b=9 in.
h=12 in.
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FIND:
The Area of a triangle with the given side lengths.
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Let:
A = area measured in inches squared.
b = base measured in inches.
h = height measured in inches.
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FORMULA for the AREA of a TRIANGLE:
A=(1/2)bh
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SUBSTITUTE:
A = (1/2)(9)(12)
A = (9/2)(12)
A = (9/2)(12/1)
A = (9)(6)
A = 54 inches squared
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Therefore your answer is: b) 54 in. 2
2006-11-30 03:14:24 · answer #9 · answered by LovesMath 3 · 0⤊ 0⤋
too easy 1/2 bxh answer b
2006-11-30 02:34:29 · answer #10 · answered by Anonymous · 1⤊ 0⤋