Prove triangle PQS is similar to triangle QRS

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SUMMARY

Triangle PQS is similar to triangle QRS due to the Angle-Angle (AA) similarity criterion. Angles QPS and QRS are complementary, as are angles QQS and PQS. Since both triangles share angle Q and have two pairs of corresponding angles that are equal, it follows that triangle PQS is similar to triangle QRS. Consequently, this similarity leads to the conclusion that QS² = PS * SR.

PREREQUISITES
  • Understanding of triangle similarity criteria, specifically Angle-Angle (AA) similarity.
  • Knowledge of complementary angles in geometry.
  • Familiarity with basic properties of triangles.
  • Ability to interpret geometric diagrams.
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  • Study the properties of similar triangles in Euclidean geometry.
  • Learn about the Angle-Angle (AA) similarity theorem in detail.
  • Explore the relationships between angles and sides in triangles.
  • Review geometric proofs involving triangle similarity and congruence.
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Students studying geometry, educators teaching triangle properties, and anyone interested in mastering geometric proofs and theorems.

aricho
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I'm having trouble doing this...

prove triangle PQS is similar to triangle QRS
Hence prove QS^2=PS.SR

the diagram is attached

cheers
 

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Look at the angles. angles QPS and QRS are complementary. So are QQS and PQS.
 
yer, but how can u prove that they triangles are similar?
 
If two triangles contain the same three angles, then they are similar.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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