Only right triangles.
Right angled triangles!
If the 3 interior angles are the same then the triangles are similar
Similar triangles
It is given that two triangles are similar. So that the ratio of their corresponding sides are equal. If you draw altitudes from the same vertex to both triangles, then they would divide the original triangles into two triangles which are similar to the originals and to each other. So the altitudes, as sides of the similar triangles, will have the same ratio as any pair of corresponding sides of the original triangles.
No, only your brain can. Similar triangles can be used to solve some problems but not others but it is for you to work out - using your brain - whether or not similar triangles are relevant and then to figure out how they might be used.
Only right triangles.
there are three different triangles. the iscocelese, equalateral and right. so no
no
hi
No
False.
If one corner is right, the other corners are together 90 degrees. So they're both still variable. So: no not all right triangles are similar
No.Examples:The right angled triangles {3, 4, 5} & {6, 8, 10} are similar;The right angled triangles {3, 4, 5} & {5, 12, 13} are just two right angled triangles.
Triangles do not have parallel lines but as right angles triangles they do have perpendicular lines that meet at 90 degrees.
To prove that two right triangles are similar, all you need to show is that one of them has one acute angle that's equal to one acute angle of the other one.
congruent sides and right angles, etc