UPSC Prelims 2018 · CSAT (Paper 2) · Q4
Basic Numeracy
Medium · Combinatorics (polygon diagonals)
How many diagonals does a regular octagon (8 sides) have?
UPSC Prelims 2018 · CSAT (Paper 2) · Q4
Medium · Combinatorics (polygon diagonals)
How many diagonals does a regular octagon (8 sides) have?