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hodyreva [135]
2 years ago
9

Find the measure of the angle indicated. A. 130° B. 142° C. 145° D. 38°

Mathematics
2 answers:
Inessa [10]2 years ago
7 0

Answer: 142°

Step-by-step explanation:

∡BAC= 38°

∡BAN= 180°-38° = 142°

attashe74 [19]2 years ago
4 0

Answer:

  • 142 = x

Step-by-step explanation:

<u>We know that:</u>

  • Triangle = 180°

<u>Let's name the missing angle x.</u>

  • 73 + 69 + (180 - x) = 180
  • => 142 + (180 - x) = 180
  • => 322 - x = 180
  • => 322 - 180 = x
  • => 142 = x

Hence, the value of the missing angle is 142°.

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sergejj [24]

Hello from MrBillDoesMath!

Answer:

9


Discussion:

Solution 1:

Distance between two points (x1, y1), (x2,y2) is given by the formula

sqrt(  (x1-x2)^2 + (y1-y2)^2).  In our case this becomes

sqrt( (0-0)^2 +  (12 -3)^2 ) =

sqrt( 9^2) =

9.


Solution 2:

Note points D and E both have x = 0 so segment DE is a vertical segment. The length is simply the difference of the y coordinates: 12- 3 = 9 as before.


Thank you,

MrB

6 0
2 years ago
If someone could please help me I’m confused thanks:)
Sedbober [7]
<h3>Answer:  x = 45</h3>

Work Shown:

x+x+90 = 180 .... all three angles of a triangle add to 180

2x+90 = 180

2x = 180-90

2x = 90

x = 90/2

x = 45

This is a 45-45-90 right triangle. We also consider it an isosceles right triangle because the base angles (45) are equal.

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