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charle [14.2K]
3 years ago
14

M∠ABC=138° and m∠DEF=31° . Which statement is true about ∠ABC and​ ∠DEF ​?

Mathematics
2 answers:
katrin2010 [14]3 years ago
7 0

Answer: The angles are neither complementary nor supplementary.

Step-by-step explanation:

If the sum of two angles is 180 degrees  then we call them as supplementary angles.

If the sum of two angles is 90 degrees  then we call them as complementary angles.

The given angles : m∠ABC=138° and m∠DEF=31°

Sum of angles =m∠ABC+ m∠DEF=138^{\circ}+31^{\circ}=169^{\circ}

which is nor equals to 180^{\circ} neither 90^{\circ}.

Hence, The angles are neither complementary nor supplementary.

Aleksandr-060686 [28]3 years ago
5 0
<span>A. The angles are neither complementary nor supplementary. 

As their sum is neither equal to 90 nor 180, they are none of them

Hope this helps!</span>
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4 0
3 years ago
Use the substitution method to solve the system of equations. Choose the correct ordered pair.
motikmotik
Ur gonna have to pick an equation and solve for a variable.

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x = y + 3

now we sub y + 3 in for x in the other equation
14x - 2y = 78
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-----------------------
14y - 2y = 36 ...simplify
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solution is (6,3)

it is always a good idea to check ur answer by subbing it into one or both of the equations to see if it is correct
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so yes, ur solution is (6,3)
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3 years ago
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3 years ago
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