Number 2.
plot point f so that triangle abc is congruent to triangle fgh. identify a sequence of rigid motions that maps triangle abc onto triangle fgh and use a theorem to explain why the triangles are congruent

Step-by-step explanation:

Notice that there was applied rigid transformation to get the triangle FGH, this means the size and shape won't change.

Also, triangle FGH is like a reflection of triangle ABC accros the line y = -1, and it's being shifted 1 unit rightwards.

Applying these transformations, the point F must be at (-3,-1).

Additionally, remember that rigid transformation won't change the size or shape of the figure, which means both triangles are congruent.

yes

step-by-step explanation:

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: