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2 years ago

14

If triangle ABC A(-4,5) B(-4,-6) and C(3,-8)is rotated 90 degrees counterclockwise about the origin, what would be the coordinat

es of the new image?

2 answers:

stepladder [879]2 years ago

5 0

(-4,-5)(-4,6)(3,8)
all y signs become opposite!:)

3241004551 [841]2 years ago

5 0

Umm is this the answer cause I need help on this too

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Someone solve this for me pls

sladkih [1.3K]

<h2><em><u>Answer</u></em><em><u>:</u></em><em><u>-</u></em></h2>

$\pink{\bigstar}$ The measure if ∠x $\large\leadsto\boxed{\tt\purple{43^{\circ}}}$

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• <u>To</u><u> </u><u>Find</u><u>:</u><u>-</u>

Measure of $\angle$ x

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<h3>• <u>Solution</u><u>:</u><u>-</u></h3>

The given angles are made by a straight line. We know that the total angle made by a straight line is 180°.

Therefore, all the angles should sum upto 180°.

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•<u> Working:-</u>

➪ $\sf (x + 31^{\circ}) + (x + 20^{\circ}) + (x) = 180^{\circ}$

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➪ $\sf x + 31^{\circ} + x + 20^{\circ} + x = 180^{\circ}$

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➪ $\sf 3x + 51^{\circ} = 180^{\circ}$

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➪ $\sf 3x = 180^{\circ} - 51^{\circ}$

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➪ $\sf 3x = 129^{\circ}$

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➪ $\sf x = \dfrac{129}{3}$

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★ $\large{\bold\red{x = 43^{\circ}}}$

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Therefore, the measure of the ∠x is 43°.

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