7.5a indirect measurement

Front

Two objects that are the same shape but not the same size are _______.

Back

Similar

Front

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree. How tall is the tree?

Back

72 feet

Front

At the same time a 6 foot person casts a 2 foot shadow, a nearby flagpole casts a ten foot shadow. How tall is the flagpole?

Back

30 feet

Front

A tree is 72 feet tall and has a shadow that is 12 feet long. A nearby tree has a shadow of 5 feet. How tall is the tree?

Back

30 ft.

Front

Sides in similar figures must be proportional. True or False?

Back

True

Front

What is the principle of indirect measurement?

Back

Using similar triangles to find unknown lengths.

Front

If two triangles are similar, what can we say about their angles?

Back

Their corresponding angles are equal.

Front

What is the formula for finding the height of an object using shadows?

Back

Height of object / Length of shadow = Height of other object / Length of other shadow.

Front

What does it mean for two figures to be congruent?

Back

They are the same shape and size.

Front

If a 5-foot person casts a 1.5-foot shadow, how tall is a flagpole that casts a 6-foot shadow?

Back

20 feet.