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Find the measure of a.
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33 votes
33 votes
Find the measure of a.

Find the measure of a.-example-1
User Romko
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1 Answer

12 votes
12 votes

Answer:

10

Explanation:

By the geometric mean theorem,

  • 4/a = a/25
  • 100=a² (cross multiply)
  • a=10 (square root both sides and take the positive solution)
User Wojtek Surowka
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