How are the triangles the same?

Answer 1

-- both triangles lie flat

-- both triangles have three sides

-- both triangles have three vertices (vertexes, points)

-- both triangles have three inside angles and three outside angles

-- neither triangle has more than one obtuse angle or more than one right angle inside it

-- neither triangle has less than two acute angles inside it

-- the inside angles of each triangle add up to 180 degrees

-- the outside angles of each triangle add up to 360 degrees

-- neither triangle has any side parallel to any other side

-- the area of each triangle is half of the product of its base and its height

-- no side of either triangle is longer than the sum of its other two sides

-- no side of either triangle is shorter than the difference of its other two sides