Indirect Measurement and Scale

The triangles are similar, solve for the question mark.

• 8

• 12.5

• 18

• 24

Are the two ratios proportional?

• YES

• NO

Solve the proportion below

• 21

• 7

• 8

• 24

Solve the proportion below:

• 3

• 24

• 21

• 12

When a scale drawing becomes larger than the original it is called a ...

• ballooner

• enlargement

• reduction

• correlation

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? 

• 3 ft.

• 300 ft.

• 30 ft.

• 35 ft.

The scale drawing car length is 3 cm. If the scale is 1 cm:4 ft, what is the actual car length?

• 12 feet

• 16 feet 

• 10 feet

• 4 feet

On a map, the distance between two towns in 2.6 cm. The scale of the map is 1 cm:50 km. What is the actual distance between the two towns?

• 100 km

• 130 km

• 70 km

• 150 km

A rectangular garden is 45 ft wide and 70 ft long. On a blueprint, the width is 9 in. Identify the length on the blueprint. 

• 7 in

• 9 in

• 12 in

• 14 in

A blueprint was using a scale of 3cm=4.5m. Find the actual length if it is 5cm on the drawing.

• 7.5

• 13.5

• 1.5

• 1.7