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2 years ago

one triangle has angles that measure 45 degree and 83 degree. what is the measure of the other angle?

Mathematics

1 answer:

jeka57 [31]2 years ago

7 0

Answer:

52 degrees

Step-by-step explanation:

Every triangles angles sum up to 180 degrees

83+45=128

180-128=52 degrees

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Svet_ta [14]

Answer:

1. Simplify: (4x2 - 2x) - (-5x2 - 8x).

Solution:

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

= 4x2 + 5x2 - 2x + 8x.

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Step-by-step explanation:

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3 years ago

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3 years ago

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s2008m [1.1K]

Answer:

$(\frac{2}{5})c$

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3 years ago

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Mumz [18]

Answer:

Step-by-step explanation:

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3 years ago

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If the diagonals of a quadrilateral bisect the angles, is the quadrilateral always a parallelogram? Explain your answer.

Liula [17]

Yes. If the diagonals bisect the angles, the quadrilateral is always a parallelogram, specifically, a rhombus.

Consider quadrilateral ABCD. If diagonal AC bisects angles A and C, then ΔACB is congruent to ΔACD (ASA). Hence AB=AD and BC=CD (CPCTC).

Likewise, if diagonal BD bisects angles B and D, triangles BDA and BDC are congruent, thus AB=BC and AD=CD. (CPCTC again). Now, we have AB=BC=CD=AD, so the figure is a rhombus, hence a parallelogram.

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3 years ago