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Setler [38]
4 years ago
10

To find the area of a triangle you can use the expression b times h divided by 2 where b is the base of the triangle and h is it

's height.What is the area of a triangle with a base of 6 and a height if 8
Mathematics
1 answer:
MrRissso [65]4 years ago
6 0

Answer:

Area = 24 cm²

Step-by-step explanation:

Area = 0.5 x (base x height)

Area = 0.5 x (6 x 8)

Area = 0.5 x 48

Area = 24 cm²

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The front of an A-frame cabin in a national park is the shape of a triangle with an area of 564 ft.² if the height is 1 feet les
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Answer:

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Step-by-step explanation:

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\begin{array}{ccc}A & = & \dfrac{1}{2}bh\\\\564 & = & \dfrac{1}{2}x(2x - 1)\\ \\1128 & = & x(2x - 1)\\& = & 2x^{2} - x\\2x^{2} - x - 1128 & = & 0\\(2x + 47)(x - 24) & = & 0\\2x + 47 = 0 &\qquad & x - 24 = 0\\2x = -47 & \qquad & x = \mathbf{24}\\x = -23.5 & \qquad & \\\end{array}

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Height = 2x - 1 = 2(24)-1 = 48 - 1 = 47 ft

Check:

564 = ½ × 24 × 47

564 = 564

OK

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