Question

Which statements are true? Select each correct answer. Responses Only some triangles are polygons. Only some triangles are polygons. All triangles have 3 angles. All triangles have 3 angles. All triangles have 3 straight sides. All triangles have 3 straight sides. All triangles are plane figures. All triangles are plane figures. All triangles have one right angle.

Answer 1

Answer: All triangles have 3 straight sides. All triangles are plane figures. All triangles have 3 angles.

Explanation: All triangles have 3 straight sides and 3 angles. A plane figure means a flat shape, which describes a triangle.