Vertical Angles: Theorem and Proof
Theorem: In a pair of intersecting lines the vertically opposite angles are equal. It can be seen that ray \overline{OA} stands on the line \overleftrightarrow{CD} and according to Linear Pair Axiom, if a ray stands on a line, then the adjacent angles form a linear pair of angles.
The 16th term is: 53
Further explanation:
We have to find the general formula first
The general form is:

The 16th term is: 53
Keywords: Arithmetic sequence, Common Difference
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Apologies for the bad handwriting.
I don’t know I can’t see the graph real well
Multiply the 37 and 23 for 851 plus the triangles must be above it so its 1035 in squared