Two triangles are shown to be congruent by identifying a combination of translations, rotations, or reflections that move one figure onto the other. If ΔABC ≅ ΔDEF, which angle must be congruent to ∠F? Why?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?

Fill in the table with whole numbers to make 430 in five different ways