Answer:
Therefore the two supplementary angles are 40° and 140°.
Explanation:
Given:
Let the measure of one angle of supplementary be 'x'
Then according to the given condition the other angle will be '3.5x'
To Find:
x = ?
3.5x = ?
Solution:
Supplementary angles:
Supplementary angles are those angles whose sum is 180°
We have two angles 'x' and '3.5x'
∴
![x+3.5x=180\\\\4.5x=180\\\\x=(180)/(4.5) \\\\\therefore x =40\°](https://img.qammunity.org/2020/formulas/mathematics/middle-school/cuphtgsjc1nv3swvmdt9zu7v83ig6cri0f.png)
one angle is 40°
Another angle will be
![3.5x= 3.5*40\\\\3.5x=140\°](https://img.qammunity.org/2020/formulas/mathematics/middle-school/8ojnwxrtv720i64o9br3bqsz59kkg1545d.png)
Therefore the two supplementary angles are 40° and 140°.