What is the value of the expression h- 20 when h = 60

Explain how you could use the interactive table to tell if sets of points are on the same line. math 8

Which best explains why this triangle is or is not a right triangle ?

In the figure below, segment ac is congruent to segment ab: which statement is used to prove that angle abd is congruent to angle acd? a.)triangle acd is similar to triangle abd. b.)triangle acd is congruent to triangle abd. c.)segment a.d. is congruent to segment ac. d.)segment a.d. is congruent to segment dc.