Question

Help please 100 point

Answer 1

`3x - 13 + 2x + 4 = 166 \\ 5x - 9 = 116 \\ 5x = 166 + 9 \\ 5x = 125 \\ x = (125)/(5) \\ x = 25 \\ \\ a = 3 * 25 - 13 = 62 \\ b = 2 * 25 + 4 = 54`

Answer 2

Solution given:

we have

<A+<B=exterior <C[sum of two opposite interior angle of a triangle is equal to the exterior angle in a triangle]

So

3x-13+ 2x+4=116°

5x-9=116°

5x=116°+9°

x=125/5

x=25

Now

<A=3×25-13=62°

<B=2×25+4=54°