Answer:
Blank 1 :- 2x + (5x - 20) + (x + 10) = 180°
Blank 2 :- x = 23.75
Step-by-step Step-by-step explanation:
As we know that sum of the interior angles of the triangle is equal to 180°, To solve for x, we can add all the three angles
The Equation becomes,
(we can use this equation to solve for x)
Solving for x:-




Add 10 to both sides,


Now, divide both sides by 8,

Hence,
- Blank 1 :- 2x + (5x - 20) + (x + 10) = 180°
- Blank 2 :- x = 23.75