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Unformatted text preview: . the angle between the
kitestring and the ground was seen to double in size
from 27º to 54º. What was the resulting increase in
the vertical height of the kite above the ground?
19. A rhombus has edgelengths of 7 cm. Its acute interior
vertex angles are both 70º. Calculate the lengths of
both of its diagonals.
(The diagonals of a rhombus bisect each other
and cross at right angles.)
20. A rod 1 metre long is hanging on a wall. If the bottom
end of the rod is pulled out 20 centimetres from the
wall, what angle will the rod make with the wall?
21. An 8 metre ladder leaning against a wall makes an
angle of 63º with the ground. How far is the foot of
the ladder away from the wall?
22. A parallelogram has edgelengths of 5 cm and 9 cm
respectively, and an angle of 58º between them.
Calculate the perpendicular distance between the two
longer edges.
23. A pair of railwaylines are 143.5 cm apart. On one
particular curved section the 'banking' is formed by
raising the outer rail 8 cm above the level of the inner
rail. When a train is being driven around th...
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This document was uploaded on 03/01/2014.
 Spring '14

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