Geometry questions please help me

Question

asked Mar 11, 2023 196k views

1 Answer

Jenner La Fave · Answer 1 · 2023-03-15T14:38:53+0000

Answer:

x = 65 degrees

Obtuse Triangle

Explanation:

By the Triangle Exterior Angle Theorem, which states that the exterior angle of a triangle is the sum of the two opposite angles:

3x - 20 = x + 110

Solve for x:

$3x - x = 110 + 20\\2x = 130\\x = 65$

So, x = 65 degrees

Because one of the angles are greater than 90 degrees, it is an obtuse triangle.