Atriangle has 68 degrees one angle measures 38 and one able measures 76 degrees what kind of triangle is it

Which of the following is the result of expanding

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis