Mental geometry level 3

These are not interactive exercises -you need pen and paper to write your answers down.

Units of length (1)
in scientific notation

Units of area (2)
in scientific notation

Trigonometry

Units of volume (1)
in scientific notation

Units of length (2)
in scientific notation

Lines of a triangle

Volumes

Units of volume (2)
in scientific notation

Pythagoras' theorem
without square roots

Similar triangles

Circle, disc, cylinder,
pyramid and cone

Vectors

Pythagoras' theorem
with square roots

Parallel
or not parallel lines?

Circle, disc, cylinder,
cone, sphere

  

Units of area (1)
in scientific notation

Enlargement and reduction