Which of these triangles appears not to be congruent to any others shown here? Check all that apply.
A. Triangle A
B. Triangle B
C. Triangle C
D. Triangle D
E. Triangle E
F Triangle F

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

Secant be and cf intersect at point d inside a what is the measure of cde

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25