An angle measures 47.2° less than the measure of its supplementary angle. What is the measure of each angle? on ixl

Respuesta :

Answer:

The measure of one angle is [tex]113.6^o[/tex], and the measure of the other one is [tex]66.4^o[/tex]

Step-by-step explanation:

Recall that supplementary angles are those whose addition renders [tex]180^o[/tex]

We need to find the measure of two such angles whose difference is precisely [tex]47.2^o[/tex].

Let's call such angles x and y, and consider that angle x is larger than angle y, so we can setup the following system of equations:

[tex]x+y=180^o\\x-y=47.2^o[/tex]

We can now solve this by simply combining term by term both equations, thus  cancelling the term in "y", and solving first for "x":

[tex]x+y=180^o\\x-y=47.2^o\\\\2x=180^o+47.2^o\\2x=227.2^o\\x=113.6^o[/tex]

So, now we have the answer for one of the angles (x), and can use either equation from the system to find the measure of angle "y":

[tex]y=180^o-x\\y=180^o-113.6^o\\y=66.4^o[/tex]