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lesya [120]
3 years ago
15

Consider the triangle. 45° 80° Find the measure of the unknown third angle.

Mathematics
2 answers:
pshichka [43]3 years ago
8 0

Answer:

55

Step-by-step explanation:

  • Since the sum of all angles in the triangle = 180°
  • Since the sum of two angles in the triangle =45°+80°= 125°
  • Then measure of the third angle = sum of all angles of triangle - the sum of two angles in the triangle = 180° - 125° = 55°
Elina [12.6K]3 years ago
6 0

Answer:

55 \degree

Step-by-step explanation:

Let the unknown angle be x

As the interior angles in a triangle are added up to 180°

x + 45 + 80 = 180 \\ x + 125 = 180 \\ x = 180 - 125 \\ x = 55 \degree

Hope this helps you.

Let me know if you have any other questions:-)

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maks197457 [2]

Answer:

AAS method can be used to prove that the two triangles are congruent.

Step-by-step explanation:

According to the question for the two triangles one pair of opposite angles are equal. One another pair of angles are equal for the two and one pair of sides are also equal of the two.

Hence, the two given triangles are congruent by AAS rule.

Hence, AAS method can be used to prove that the two triangles are congruent.

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3 years ago
Which of the following is a line that has a slope of 5 and a y-intercept at 3?
Margarita [4]

Answer:

Oy=x+3

Step-by-step explanation:

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Help? *****20 Points?*****
boyakko [2]
For both of these questions you want to raise every part to the 4th or 2nd power. Just remeber that a power raised to a power is just multiplied.

3.)
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3 0
3 years ago
Read 2 more answers
Horizon Building Company is constructing a new office building. They have 5,176 ceiling tiles. The office building will have nin
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Dafna1 [17]

Answer:

\boxed{\text{E$'$(-8, 4), F$'$(16,-8), G$'$(-24,-16)}}

Step-by-step explanation:

When you reflect a point (x, y) in the y-axis, the y-coordinate remains the same, but the x-coordinate gets the opposite sign. Thus,

E (8,4) ⟶ E' (-8,4)

F (-16,-8) ⟶ F' (16,-8)

G (24,-16) ⟶ G' (-24,-16)

\text{The reflected figure has coordinates } \boxed{\textbf{E$'$(-8, 4), F$'$(16,-8), G$'$(-24,-16)}}

The figure EFG and its reflection E'F'G' are shown in the diagram below.

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