Question

Help with math homework please! [ image attached + 15 point award ]

Answer 1

40°

Explanation:

As we have,

`\rm\hookrightarrow`The Sum of all sides of a triangle is 180°

Now,

`\rm\hookrightarrow 79+x+52+x+73=180\\\\\rm\hookrightarrow x=180-79-52-73\\\\\rm\hookrightarrow x=-12`

Again, finding the measure of ∡A by putting the value of x.

`\rm\hookrightarrow x+52\\\\\rm\hookrightarrow -12+52\\\\\rm\hookrightarrow 40`