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Tanya [424]
2 years ago
7

Two angles in a triangle add up to 138 degrees what is the size of the 3rd angle

Mathematics
1 answer:
Semenov [28]2 years ago
4 0
The measurement of the second angle is 42°. All of the angles of a triangle add up to a total of 180°. If two angles add up to 138°. Then the last angle has to be 42° (180-138).
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Pavlova-9 [17]

Answer:

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Step-by-step explanation:

we know that

If AB || DC

then

m -----> supplementary angles by consecutive interior angles

and remember that the sum of the interior angles in a trapezoid is equal to 360 degrees

m

step 1

Find the measure of angle D

m

substitute the measure of angle A

125\°+m

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step 2

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5 0
2 years ago
What is the property for 16=16
mestny [16]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
HELP PLEASE.................
Kryger [21]
Zero

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6 0
2 years ago
Please help me this is due today
Serjik [45]

Answer:

1. 15 (A)

2. 12 (G)

Step-by-step explanation:

1.  We can make an equation out of this...

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         -3   -3

     ________

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    _____

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2.   We can write a problem statement  

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      Your Welcome! Have a great rest of your day! :)

 

       

     

7 0
2 years ago
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Genrish500 [490]

Answer:

x = 3.5

Step-by-step explanation:

15(1/2) = 7.5

7.5+6 =13.5

subtract 17 and divide by -1 to isolate x 13.5-17/-1

x = 3.5

8 0
2 years ago
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