Geometry Topic 9 Review

Look at the triangle:
If both dimensions are tripled, then which of the following statements about its area will be true?

• The ratio of the new area to the old area will be 4:1.

• The ratio of the new area to the old area will be 3:1.

• The ratio of the new area to the old area will be 1:4.

• The ratio of the new area to the old area will be 9:1.

Find the tangent of ∠W.

tan (W) =

Enter your answer as a simplified fraction.

Find UW.

UW=

Write your answer as an integer or as a decimal rounded to the nearest tenth.

Find RS.

Write your answer as an integer or as a decimal rounded to the nearest tenth.

Find PR.

Write your answer as an integer or as a decimal rounded to the nearest tenth.

Find m∠P.

Write your answer as an integer or as a decimal rounded to the nearest tenth.

Solve the right triangle.

Find SU.

Write your answers as integers or as decimals rounded to the nearest tenth.

Which rule explains why these scalene triangles are similar?

• SSS

• SAS

• AA

• None of the above; the triangles cannot be proven similar

The figures below are similar. The labeled sides are corresponding.

What is the area of the larger rectangle?

UVWX ~ HKJI. What is m∠X?