Some True and False questions about Geometry.?

1. All right triangles are similar.





2. If two triangles are similar, the ratio of a pair of corresponding angles is equal to the ratio of their perimeters.





3. All rectangles are similar.





4. Two isosceles triangles are similar if the vertex angle of one is congruent to the vertex angle of the other.





true or false please. i need to no them for my test thanks.Some True and False questions about Geometry.?
1 False


2. False as is. If that had said corresponding sides then True


3. False


4. TrueSome True and False questions about Geometry.?
1. false


2. true


3. true- because they ALL have 90 degree angles


4. true