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Spm form 3 math questions on circle, can someone help me with this, i don’t exactly know how to do this, i guess the interior angle of pentagon is 540 degree but after that how do i find x+y??? Help
monopacks
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Jun 21
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Spm form 3 math questions on circle, can someone help me with this, i don’t exactly know how to do this, i guess the interior angle of pentagon is 540 degree but after that how do i find x+y??? Help
askmath
monopacks
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Hi u/Right_Shape1203,
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CamaraElectoral
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Jun 21
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A couple of things to note:
1. The triangles OBC, OCD, ODE, OEA are isosceles. So ∠OAE=∠OEA, etc.
2. For a triangle inscribed within a semicircle, the angle opposite the diameter is always a right angle. So angles ∠BCA, ∠BDA, ∠BEA are right angles.
AvosFromMexico
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Jun 21
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