Answer:
35 and 20
Explanation:
→ For the 1st question utilise the fact angles in triangle add to 180
2x + 2x + 40 = 180
→ Simplify
4x = 140
→ Find x
x = 35
→ For second question all sides are the same ⇔ angles are the same
3x + 3x + 3x = 180
→ Solve
x = 20