Question

If two angles are supplementary and one of them is 23°, then which one of the following is the other angle?

Answer 1

Answer

3.0/5

3

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SUM OF SUPPLEMENTARY ANGLE IS 180°.

LET THE FIRST ANGLE BE 'X'.

HENCE,

ACCORDING TO THE QUESTION,

SECOND ANGLE WILL BE ('X' + 80°).

ALSO (X+80°)+(X) = 180°.

2X +80° = 180°.

2X = 180°-80°

2X= 100°

X=  100/2

X = 50°

HENCE FIRST ANGLE WILL BE 50°AND SECOND ANGLE WILL BE 50+80 = 130°.

Answer 2

Answer:

Supplementary angles' sum = 180 degree

Let angle be x.

So, another angle would be 180 - x  

Given that 180 - x - x = 23

180 - 2x = 23

2x = 180 - 23 = 157

x = 157/2 = 78.5 degree