Class 9 · 28 games

Class 9 shapes and angles, as pictures to move

Sorting shapes by their sides, and measuring the turn at a corner. Here is what Class 9 practises in shapes and angles, and the games that do it.

Skills in Class 9 shapes and angles

  • Lines, angles and a transversal
  • Congruent triangles
  • Quadrilaterals and the midpoint theorem
  • Angles in a circle
  • Similar triangles and the proportionality theorem

The games

Played as fill in the steps, build it on the graph, place the tiles.

  • Across a transversal
  • Three sides match
  • Mark the two midpoints
  • Twice the angle at the rim
  • Midpoints on a bigger triangle
  • All four angle pairs
  • Two sides and the angle between
  • Half the third side
  • Centre, reflex and rim
  • The exterior angle
  • Two angles and the side between
  • A quadrilateral in a circle
  • Angles inside and out
  • Right angle, hypotenuse, side
  • Lengths times k, area times k squared
Grade 6 · GeometryWhy do a triangle's angles add up to 180°?

Shapes are named by how many sides they have

Three sides is a triangle, four is a quadrilateral, five a pentagon, six a hexagon. Stretching or turning a shape does not change its name.

Triangle: 3 sides
Pentagon: 5 sides
Hexagon: 6 sides

Shapes and angles, explained with pictures

Questions parents ask

What shapes and angles does Class 9 cover?
In Tivumo, Class 9 shapes and angles covers: lines, angles and a transversal; congruent triangles; quadrilaterals and the midpoint theorem; angles in a circle; similar triangles and the proportionality theorem.
How many Class 9 shapes and angles games are there?
28 games, played as fill in the steps, build it on the graph, place the tiles.
Is it free?
Yes. Free, no ads, no in-app purchases, and it works offline after the first visit.

More Class 9 maths

Shapes and angles in other classes

Practise Class 9 shapes and angles in Tivumo

No download, no account for your child. Classes 3 to 12, more than 1,000 games.