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olga55 [171]
3 years ago
13

Need help thanks???!!

Mathematics
1 answer:
solniwko [45]3 years ago
3 0

Answer:

x = 78 degrees

Step-by-step explanation:

Let y represent the last angle in the triangle containing 79 degrees and x degrees.

Since the top and bottom lines are parallel, then angle y and angle 23 are alternate angles. Alternate angles are equal. Therefore,

Angle y = 23 degrees

The sum of the angles in a triangle is 180 degrees. It means that

Angle x + angle y + 79 degrees = 180 degrees. Therefore

x + 23 + 79 = 180

x + 102 = 180

Subtracting 102 from the left hand side of the equation and the right hand side of the equation, it becomes

x + 102 - 102 = 180 - 102

x = 78 degrees

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In the triangle ABC , Angle A = 46° and Angle B = 83°. How large is the exterior angle at C?
lisabon 2012 [21]

Answer:

180 - 46 - 83 = 51 is the measure of angle C

the exterior angle at angle C, and angle C, are supplementary. since angle C is 51 because of the interior angle triangle sum theorem, then the exterior angle is: 180 -51 = 129 degrees.

Step-by-step explanation:

I hope this helps :)

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Step-by-step explanation:

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Step one : let us test say c=1

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-<em><u>samuelonum1</u></em>-

Not my answer/ please give brainlist

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C
--------------------------------------
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