Are two pairs of congruent angles enough information to conclude that two triangles are similar

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i