Geometric Mean

Determine the value of x in the diagram:

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CCSS.HSG.CO.C.9

√28 in simplest radical form:

• 7√2

• 7√4

• 4√7

• 2√7

Find the missing length indicated. Leave your answer in simplest radical form.

• 64
• 12
• 9
• 100

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CCSS.HSG.CO.C.9

The accompanying diagram shows a 24-foot ladder

leaning against a building. A steel brace extends

from the ladder to the point where the building

meets the ground. The brace forms a right angle

with the ladder. If the steel brace is connected to

the ladder at a point that is 10 feet from the foot of the ladder, which equation can be used to find the length, x, of the steel brace

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CCSS.HSG.CO.C.9

Solve for x and y.

• x = 2√26; y = 4√3

• x = 2√21; y = 6

• x = 2√21; y = 4√3

• None of these

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CCSS.HSG.CO.C.9

Find the geometric mean for 2 and 25.

• 5
• 2√5
• 2
• 5√2

Tags

CCSS.8.EE.A.2

Solve for y

• 
• 
• 
• 

Tags

CCSS.HSG.CO.C.9