Find Rhombus Angles: 360º & 22º30

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Discussion Overview

The discussion revolves around finding the angles of a rhombus given that the angle between one diagonal and a side is 22º30’. Participants explore the relationships between the angles and the properties of a rhombus.

Discussion Character

  • Technical explanation
  • Mathematical reasoning

Main Points Raised

  • One participant states that the angle between the diagonal and the side of the rhombus is 22º30’ and asks how to find the other angles.
  • Another participant notes that a rhombus has congruent opposing angles and suggests this might help in solving the problem.
  • A participant calculates the angles, proposing that if B = 22º30’ multiplied by 2 equals 45º, then angles B and D are both 45º, leading to angles C and E being 135º each.
  • A later reply confirms the calculations presented by the previous participant, affirming their correctness.

Areas of Agreement / Disagreement

While there is agreement on the calculations presented by one participant, the initial question about finding the angles remains open, as not all steps or assumptions are explicitly confirmed by all participants.

Contextual Notes

The discussion does not clarify the assumptions behind the calculations or the definitions used, such as the properties of rhombus angles in relation to the diagonals.

Joostrea
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The angle between the diagonal and the side of the rhombus is 22º30’. Find rhombus angles.
Rhombus interior angles are 360º that much I know, but how do I find out the other angles?
 
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Just remember that by definition, a rhombus is always going to be congruent on opposing sides of each diagonal. See if this helps you get started...

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B=22º30’*2=45º
B=45º
D=45º

45º+C=180º
C=135º
E=135º

Did I do it right?
 
Joostrea said:
B=22º30’*2=45º
B=45º
D=45º

45º+C=180º
C=135º
E=135º

Did I do it right?

Yup. Good job : )
 

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