Similar Figures Practice

When you multiply by a scale factor over 1, it will result in ...

• a reduction.

• the same size.

• an enlargement.

• a different shape.

When you multiply by a scale factor less than 1, it will result in ...

• a reduction.

• the same size.

• an enlargement.

• a different shape.

Triangle ABC is similar to triangle FGH.
What is the value of x in centimeters?

• 22.5 cm

• 8 cm

• 10.8 cm

• 30 cm

Triangle PQR is similar to triangle XYZ.
What is the length of line segment XZ?

• 11 in.

• 13.5 in.

• 9 in.

• 20.25 in.

The two triangular prisms shown above are similar.
What is the value of x, the height of the larger prism?

• 6.8 cm

• 4 cm

• 6 cm

• 7.2 cm

Parallelogram PQRS is similar to parallelogram WXYZ.
What is the length of line segment YZ?

• 3 units

• 11.6 units

• 5 units

• 4.5 units

Lance the alien is 5 feet tall.  His shadow is 8 feet long.  At the same time of day, a tree's shadow is 32 feet long.  What is the height of the tree?

• 20 feet

• 24 feet

• 29 feet

• 51 feet

Triangle ABC is similar to triangle XYZ.  What is the length of line segment BC?

• 5 cm

• 7.5 cm

• 8 cm

• 9 cm

If triangles ADE and ABC shown in the figure above are similar, what is the value of x?

• 4

• 5

• 6

• 8

Triangle PQR is similar to triangle XYZ.  What is the PERIMETER of triangle XYZ?

• 21 cm

• 63 cm

• 105 cm

• 126 cm