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Unformatted text preview: possible to draw them.
In one case the 1st square has an edgelength of 14 cm.
What is the edgelength of the 2nd square?
And the 3rd?
How many squares must be drawn until one has an edge less than 2 cm?
By looking at the sequence of edgelengths,
can you see a simple relationship between them?
If so, then use that to determine the size of the 10th square to be drawn. © Frank Tapson 2004 [trolPT:10] T/6 T/7 Trigonometry
Pythagorean problems in 3dimensions.
Drawings are NOT to scale. 1. Find the length of the spacediagonal of cuboid measuring 4 metres by 5 metres by 7 metres.
2. What is the greatest length of a thin rod, which must measure an exact number
of centimetres, and can fitted into a cuboidal box measuring 14 cm by 8 cm by 5 cm?
E 3. The drawing on the right represents a wooden wedge.
Face ABCD is in the horizontal plane, face ADEF is in
the vertical plane. BCEF is the sloping face.
BC is 10 cm; AB is 14 cm; AF is 4 cm.
If an insect set out to walk up the sloping face, starting
from C, i...
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