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Natasha2012 [34]
2 years ago
12

Find the measure of the exterior angle X: 125

Mathematics
1 answer:
igomit [66]2 years ago
5 0
Answer: x=80°

Explanation:
To find the exterior angle x we first need to find the last corner angle (a) of the triangle. The angles of triangles add up to 180° so we can use the formula: 25+55+a=180

Solving formula:
25+55+a=180
80+a=180
(Subtract 80 from both sides)
a=100°

Now that we know a=100 we can find the exterior angle. a+x=180 because the angles are on a straight line which equals 180°

a+x=180
100+x=180
(Subtract 100 from both sides)
x=80°

Hope this helps! Please leave a thanks if possible so I can continue to help others :)
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Svet_ta [14]

1) -12

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2) 1

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2*-4 is -8. 3*3 is 9. We add them both, and -8+9 equals 1.

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3 years ago
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Inessa05 [86]

Answer:

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Step-by-step explanation:

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2 years ago
2. One angle is one less than six times the measure of
Illusion [34]

The equations used to find the measure of each angle in degrees is x + y = 90 and x = 6y - 1

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<em><u>Solution:</u></em>

Given that two angles are complementary angles

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Let one of the angle be "x" and the other angle be "y"

Therefore,

x + y = 90 ------ eqn 1

Also given that,

One angle is one less than six times the measure of  another

one angle = six times the other angle - 1

x = 6y - 1 ------ eqn 2

Substitute eqn 2 in eqn 1

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6y + y - 1 = 90

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y = 13

Substitute y = 13 in eqn 2

x = 6(13) - 1

x = 78 - 1

x = 77

Thus the two complementary angles are 77 degrees and 13 degrees

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3 years ago
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Answer:

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Step-by-step explanation:

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