Question

Which statements are true?

Select each correct answer.

Only some triangles are plane figures.
All triangles are closed figures.
All triangles are polygons.
All triangles have 3 right angles.
All triangles have 3 straight sides.
Multi answer BTW

Answer 1

All Triangles are closed figure polygons that have three straight sides

Explanation:

All 2D shapes are plane figures so this one is false. Three right angles are greater than 180 so this is fake. Polygon and closed figures are shapes with three or more closed sides. And triangles have straight sides.