Ihave this question and i need it done ? picture included i was never taught matrix

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

What is the value of f(x) = 2.2 for f(-2)?

72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.