Number of degrees in a right angle (6) Crossword Clue
Answer: NINETY (6 letters)
The answer to the crossword clue "Number of degrees in a right angle (6)" with 6 letters is "NINETY". This refers to the fundamental geometric fact that a right angle measures exactly 90 degrees.
Why “NINETY” Fits
The clue asks for a straightforward factual term representing the measure of a right angle in degrees (6).
“NINETY” is the direct and precise numerical word for 90, which defines the size of a right angle in standard geometry.
The word NINETY has 6 letters, so it fits the (6) enumeration required by the clue.
A Bit of Background
The concept of a right angle measuring 90 degrees originates from the Babylonian sexagesimal (base-60) system, adopted by the Greeks and standardised in Euclidean geometry around 300 BC. This division of a circle into 360 degrees naturally makes each quarter (a right angle) 90 degrees.
In quick crosswords, such as the Irish Daily Mail Quick or other British-style puzzles, basic mathematical and geometric facts like this are common clues, testing general knowledge with unambiguous answers like "ninety".
