Review Right Triangles

Given the right triangle, what is the value of x?

A 9-foot ladder is placed 4 feet from the base of a building. How high does the ladder reach?

The perimeter of a square is 52 inches. Find the length of one of the diagonals of the square. Write the answer as a radical.

Find the missing sides of the triangle.

Use whichever method you would like

Find the missing sides of the triangle. Write your answer with M first, W next.

Use whichever method you would like

Using a proportion, find the geometric mean.

a = x

x b

12 and 15

Solve for the variable using the geometric mean.

Solve for the variable using the geometric mean.

Identify the ratios of sin(x) using the names of the sides.

• Sin(x)=hyp/opp

• Sin(x)=opp/adj

• Sin(x)=adj/hyp

• Sin(x)=opp/hyp

Identify the ratios of cos(x) using the names of the sides.

• Cos(x)=

  hyp/opp

• Cos(x)=

  opp/adj

• Cos(x)=

  adj/hyp

• Cos(x)=

  opp/hyp