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Mkey [24]
2 years ago
12

A, B, C, D are points on a line.

Mathematics
1 answer:
mihalych1998 [28]2 years ago
6 0

The points A, B, C and D are collinear points

The length of the segment AD is 7 units

<h3>How to determine the length AD?</h3>

The given parameters are:

AB = 1

BC = 2

CD = 4

Because the points are on the same line, then the following is the possible equation

AD = AB + BC + CD

Substitute known values

AD = 1 + 2 + 4

Evaluate the sum

AD = 7

Hence, the length of the segment AD is 7 units

Read more about line segments at:

brainly.com/question/14366932

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One angle of a triangle has a measure of 36°. The measure of the third angle is 28° less than 3 times the measure of the second
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Answer:

  1. Define your variable and write your equation:  36 + b + (3b-28) = 180°.
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Step-by-step explanation:

a = 36

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a + b + c = 180°

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b = measure of the second angle

c = measure of the third angle

then:

1)  36 + b + (3b-28) = 180   ⇒ )Define your variable. Write your equation and solve)

b + 3b + 36 - 28 = 180

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4b = 180 - 8

4b = 172

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2)   b = 43°        ⇒   measure of the second angle

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3) c = 101°      ⇒   measure of the third angle

Check:

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Answer:

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When you know a sum and one of its contributors, you can find the other by subtraction. The other trinomial is ...

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