50 compared to 5000 on a place value pattern

The place value pattern is a system of patterns of tens in which every place value is ten times the value on its right. The place value pattern system is used to write numbers that are 10 times as much as or 1/10 of any given number. 
The place values in the pattern are: ones, tens (10*ones), hundreds (10*tens), thousands (10*hundreds),...
So, 50 = 5 tens 
       5000= 5 thousands, 0 hundreds, 0 tens, 0 ones

So, 5000 > 50

Agc and bgd are vertical angles

The answer to the question is d