

1.

John would like to determine the height of a maple tree. He is 1.5 m tall and
his shadow is 4.0 m long. The shadow of the tree at the same time of day is 80.0 m long. Which
ratio could use to determine the height of the tree?


2.

Use your answer to question 1 to determine the height of the tree.


3.

Marta is standing beside a lighthouse on a sunny day. Marta is 1.6 m tall. How
tall is the lighthouse?


4.

On a sunny day, Richard is visiting the CN Tower in Toronto. Richard is 1.86 m
tall and casts a shadow that is 4.0 m long. At the same time, the CN Tower casts a shadow that is
1190 m long. How tall is the CN Tower?
a.  500 m  b.  565.75 m  c.  550.40 m  d.  553.35
m 


5.

A tree 30 m tall casts a shadow that is 50 m in length. How tall is a nearby
street post that casts a shadow at the same time of day that is 8 m in
length?
a.  3.8 m  b.  4.8 m  c.  5.4 m  d.  4.2
m 


6.

Braedon is 1.85 m tall and cast a shadow that is 0.60 m long. At the same time,
a nearby radio tower casts a shadow that is 9.00 m long. How tall is the radio
tower?
a.  25.52 m  b.  31.25 m  c.  27.75 m  d.  22.50
m 


7.

is similar to . Which ratio would you use to determine
the length of
CD?


8.

Use your answer to question 7 to determine the length of CD.


9.

A surveyor uses this diagram and similar triangles to determine the distance
across a bay. Which ratio would you use to determine the length of
AB?


10.

Use your answer to question 9 to determine the distance across the
bay.
