the inside angles of a triangle always equal 180 degrees when added, so i just subtracted 56 and 62 from 180, also, the triangle is isosceles, which has 2 angles of equal value, so the unknown angle had to be equal to 62
<span>This is the term used to describe economic systems in which the basic economic questions are answered based on a socially, pre-established way.</span>
(five) should match the number of rows of 
(four).