mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2022

1 December

One of the vertices of a rectangle is at the point \((9, 0)\). The \(x\)-axis and \(y\)-axis are both lines of symmetry of the rectangle.
What is the area of the rectangle?

Show answer

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2025