Geometric Mean Right Triangles

Which equation can be used to solve for "x"?

• 15² – x² = 21²

• x² – 15² = 21²

• 15² + 21² = x²

• 21² – 15² = x²

Determine the length of the missing side.

• 7

• 8

• 17

• 23

• The top of the ladder is 8.9 ft from the ground
• The top of the ladder is 9.2 ft from the ground
• The top of the ladder is 16.5 ft from the ground
• The top o the ladder is 14.4 ft from the ground

Find the value of "c"

• c = 8

• c = 10

• c = 2√13

• c = 2√5

Given the 3 lengths of a triangle are 6 in, 8 in and 10 in.  Will this make a right triangle?

• yes

• no

What is the length of x in this 45-45-90 triangle?

• 4√2

• 4

• 8

• 4√3

Find the value of y.

• 9

• 18√2

• 9√2

• (9√2)/2

Find a.

• 3

• 3√3

• 6

• 2√3

Find the missing side lengths.

• a = 4, b = 4

• a = 4, b = 2√2

• a = 2√2,  b = 4

• a = 4, b = 4

• A
• B
• C
• D