Question

NEED HELP WITH A MATH QUESTION

Answer 1

Answer: x=20

Explanation:

2x+10+2x+90=180

4x+100=180

4x=80

X=20

Answer 2

`x = 20\°`

Explanation:

By definition we know that the sum of the internal angles of a triangle is always equal to 180 °

in this case we have a right triangle. We know that right triangles have an angle of 90 °.

So the sum of the three sides of this triangle must be equal to 180 °

So

`2x + 10 + 2x + 90 = 180`

We solve the equation for the variable x.

`4x +100 = 180\\4x = 180-100\\4x = 80`

`x = 20\°`