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EleoNora [17]
3 years ago
14

Three right triangles surround a shaded triangle; together they form a rectangle measuring 12 units by 14 units. The figure belo

w shows some of the dimensions but is not drawn to scale. Is the shaded triangle a right triangle?

Mathematics
1 answer:
Alchen [17]3 years ago
7 0

Answer:

its not a right angled triangle

Step-by-step explanation:

this is because it doesnt follow the rule of pytagorous theorem

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Answer:

B. (1,5) and (5.25, 3.94)

Step-by-step explanation:

The answer is where the 2 equations intersect.

We need to solve the following system of equations:

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From the second equation:

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y = -(21 - 4y)^2 + 6(21 - 4y)

y = -(441 - 168y + 16y^2)+  126 - 24y

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16y^2 + y - 168y + 24y + 441 - 126 = 0

16y^2 - 143y + 315 = 0

y = [-(-143) +/- sqrt ((-143)^2 - 4 * 16 * 315)]/ (2*16)

y = 5, 3.938

When y = 5:

x = 21 - 4(5) = 1

When y = 3.938

x = 21 - 4(3.938) = 5.25.

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3 years ago
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Zarrin [17]

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