mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

Three squares

Source: Numberphile
The diagram shows three squares with diagonals drawn on and three angles labelled.
What is the value of \(\alpha+\beta+\gamma\)?

Show answer & extension

If you enjoyed this puzzle, check out Sunday Afternoon Maths XXIX,
puzzles about geometry, or a random puzzle.

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles

Tags

remainders perimeter games hexagons people maths doubling ellipses chocolate number shapes averages cryptic crossnumbers wordplay multiples spheres prime numbers graphs regular shapes shape geometry differentiation digits numbers unit fractions circles speed bases complex numbers advent parabolas calculus algebra probability integration factors dates square roots coordinates products sport arrows scales median chess polygons ave christmas tiling money multiplication floors crosswords books fractions gerrymandering 2d shapes triangles colouring balancing division symmetry partitions sums grids triangle numbers probabilty folding tube maps proportion clocks crossnumbers odd numbers volume the only crossnumber squares cryptic clues functions surds addition dodecagons cards square numbers factorials rectangles coins crossnumber digital clocks area trigonometry menace mean time range dice planes percentages integers palindromes perfect numbers sum to infinity indices 3d shapes chalkdust crossnumber logic taxicab geometry elections star numbers sequences angles quadratics dominos rugby cube numbers routes pascal's triangle irreducible numbers means lines

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020