mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

Equal lengths

The picture below shows two copies of the same rectangle with red and blue lines. The blue line visits the midpoint of the opposite side. The lengths shown in red and blue are of equal length.
What is the ratio of the sides of the rectangle?

Show answer

If you enjoyed this puzzle, check out Sunday Afternoon Maths LXIV,
puzzles about 2d shapes, 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

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

Archive

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