Question

the angles are supplementary and the larger is 20 degrees less than the smaller . find the angles​

Answer 1

Answer:

100• and 80•

Step-by-step explanation:

The angles are 100• and 80• .

Answer 2

Answer:

Smaller angle = 50°

Larger angle  = 130°

Step-by-step explanation:

The sum of two supplementary angles is 180 degrees  

Let the smaller angles be x  

It is given that large angle is 20 less than 3 times of smaller i.e = 3x - 20    

x + 3x - 20 = 180  

4x - 20 = 180  

4 (x-5)  = 180  

x - 5     = 45  

x  = 50

3x - 20 = 130  

So the smaller angle = 50°

and larger angle  = 130°